Tokushima University / Educator and Researcher Directory --- Mizobuchi, Akira

Personal Web Page

https://researchmap.jp/read0191785 (researchmap)

Field of Study

○	Machining

Subject of Study

○	チップソーによる切断加工に関する研究, アルミナセラミックの加工に関する研究, 断続切削時の工具温度変化に関する研究, 単結晶ダイヤモンド工具による超精密切削加工に関する研究 (sawing, tensioning method, tipped saw, tool wear, intermittent cutting, tool temperature, tool life, ultra-precision cutting, surface roughness, cutting force)

Book / Paper

Book:

1.	Masaki Hashizume, Koichi Ute, Yumiko Izaki, Masaki Oono, Susumu Nakano, Akira Mizobuchi, Junji Tamatani, Naoyuki Shimomura, Takao Ueda, Katsutoshi Ueno, Fumiaki Nagao, Chikanori Hashimoto, Yasunori Muto, Takeshi Watanabe, Takahiro Kido, Tetsuro Katayama, Yoko Yamashita, Atsushi Tabata, Yuka Sasaki, 島木美香, Takeshige Otoi, Kaori Kanemaru, Takefumi Hattori, Tatsuo Hamano, Katsuyuki Miyawaki, Ryo Anma, Ken-ichi Nishiyama and Mutsuki Aoya : 安全マニュアル, Apr. 2021.

Academic Paper (Judged Full Paper):

1.	Tappei Oyamada, Akira Mizobuchi and Tohru Ishida : Effects of Bit Shape of Electroplated Diamond Tool Used for Drilling Small Diameter Holes in Glass Plate on Machining Fluid Flow and Chip Discharge, International Journal of Automation Technology (IJAT), Vol.17, No.1, 32-39, 2023. (Summary) Our laboratory has been exploring the development of tools for drilling holes in glass plates, and the drilling techniques to be adopted for it. A devised tool shape that could prevent the occurrence of cracks at the exit holes achieved high quality through hole drilling of 100 holes or more using only the drilling cycle. However, crack-free drilling beyond this number of holes cannot be performed. This is due to the adhesion of the residual chip on the tool surface when the number of holes increases. Therefore, further improvement of chip discharge is needed to achieve crack-free drilling. In this report, we consider that chip discharge results from the flow of the machining fluid. To investigate the cause of chip discharge, we analyzed the flow of the machining fluid in the hole using computational fluid dynamics and the supposed chip discharge conditions. The results obtained in this study are summarized as follows. (1) In the case of a cylindrical tool, the Z-axis directional flow of the machining fluid did not occur in the hole. This is because the tool does not have bumps to agitate the fluid on the side, and the gap between the tool and the inner surface of the hole is narrow. (2) The plate side widened the gap between the tool and inner surface of the hole. Therefore, the fluid was likely to flow in the Z-axis direction in the hole. (3) For the tool with the plane side bit, the flow entered the hole from one plane side and exited the hole from the other plane side. (4) When the tool end is spherical, the Z-axis directional flow of the fluid occurs at the tool end. (5) The fluid flow of the devised tool weakened as the drilling depth increased. To improve the chip discharge performance of the designed tool, the Z-axis directional flow of the machining fluid must occur in an area deeper than 2 mm. (Tokushima University Institutional Repository) ● Metadata: 118830 (Link to Publication Site) ● Publication site (DOI): 10.20965/ijat.2023.p0032 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.20965/ijat.2023.p0032 (Tokushima University Institutional Repository: 118830, DOI: 10.20965/ijat.2023.p0032)
2.	Akira Mizobuchi, Hamada Takeshi, Tashima Atsuyoshi, Horimoto Keita and Tohru Ishida : Polishing Performance of a Recycled Grinding Wheel Using Grinding Wheel Scraps for the Wet Polishing of Stainless-Steel Sheets, International Journal of Automation Technology (IJAT), Vol.16, No.1, 60-70, 2022. (Summary) The surfaces of large austenitic stainless-steel sheets, which have side lengths of at least 1 m a sheet thickness of at least 6 mm, used for food tanks and sliding plates in seismic isolation devices, must be finished to a mirror surface. Polishing is performed to improve the surface quality of such sheets and dry machining is typically applied. The problems associated with dry machining are the exhaust heat of machining and treatment of chips. A transition to wet machining is required to solve these problems. In our laboratory, we have developed a wet polishing machine and researched the selection of grinding wheels to develop wet polishing technology for large stainless-steel sheets. In this study, to reduce tool cost and reuse resources, we attempted to manufacture a recycled grinding wheel using snippets of grinding wheel scraps. A polyvinyl alcohol (PVA) aqueous solution was used as the bonding agent for the recycled grinding wheel to reduce environmental load. To overcome the ease of dissolution of PVA in water, we attempted to improve the water resistance of the PVA aqueous solution by incorporating an organic titanium compound. This is one of our efforts to contribute to sustainable development goals. The results are summarized below. (1) A recycled grinding wheel was fabricated by kneading crushed pieces of grinding wheel scrap with a bonding agent. (2) The maintenance of the shape of the recycled grinding wheel was controlled by the concentration of the bonding agent. (3) The recycled grinding wheel with a PVA bonding agent was vulnerable to water. In contrast, the recycled grinding wheel to which the organic titanium compound was added exhibited improved water resistance. (4) The polishing of stainless-steel sheets using the plain PVA recycled wheel was relatively ineffective, but polishing using the recycled wheel with the titanium additive was comparable to polishing with a new grinding wheel. (Tokushima University Institutional Repository) ● Metadata: 116995 (Link to Publication Site) ● Publication site (DOI): 10.20965/ijat.2022.p0060 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.20965/ijat.2022.p0060 (Tokushima University Institutional Repository: 116995, DOI: 10.20965/ijat.2022.p0060)
3.	今村雅紀, 深谷康太 and Akira Mizobuchi : Slag Suppression in Gas Cutting of Extreme-Thick Steel Plate by Compressed Air Blow Support, Journal of Japan Society for Design Engineering, Vol.56, No.8, 383-394, 2021. (Summary) <p>Gas cutting is one of the main methods used for cutting steel plates. Gas cutting produces molten steel and it cools down and adheres strongly to the back of the steel. This adhesion is called slag, and it is difficult to remove. In this study, a method of blowing compressed air onto a steel plate in gas cutting to blow away the molten metal, that is, the "Compressed Air Blow Support Method" was conceived. A device for blowing compressed air onto a steel plate was fabricated, and the effects of the blowing direction and input compression pressure on the amount of slag adhering to the steel were investigated. When the compressed air was blown onto the steel plate in the direction perpendicular to the direction of gas cutting, the molten metal stuck to the bottom of the steel plate was blown away and almost no slag adhesion was observed. When the input pressure was changed from 0.1, 0.2 and 0.3 MPa, the amount of slag adhered was large at the highest blowing pressure of 0.3 MPa, and the amount of slag adhered was minimal at 0.2 MPa.</p> (Keyword) steel plate / slag / gas cutting / compressed air / blow (Link to Publication Site) ● Publication site (DOI): 10.14953/jjsde.2020.2912 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390851883593411328 ● Search Scopus @ Elsevier (DOI): 10.14953/jjsde.2020.2912 (DOI: 10.14953/jjsde.2020.2912, CiNii: 1390851883593411328)
4.	Akira Mizobuchi and Atsuyoshi Tashima : Optimization of Wet Grinding Conditions of Sheets Made of Stainless Steel, Journal of Manufacturing and Materials Processing, Vol.4, No.114, 1-13, 2020. (Summary) This study addresses the wet grinding of large stainless steel sheets, because it is difficult to subject them to dry grinding. Because stainless steel has a low thermal conductivity and a high coefficient of thermal expansion, it easily causes grinding burn and thermal deformation while dry grinding on the wheel without applying a cooling effect. Therefore, wet grinding is a better alternative. In this study, we made several types of grinding wheels, performed the wet grinding of stainless steel sheets, and identified the wheels most suitable for the process. As such, this study developed a special accessory that could be attached to a wet grinding workpiece. The attachment can maintain constant pressure, rotational speed, and supply grinding fluid during work. A set of experiments was conducted to see how some grinding wheels subjected to some grinding conditions affected the surface roughness of a workpiece made of a stainless steel sheet (SUS 304, according to Japanese Industrial Standards: JIS). It was found that the roughness of the sheet could be minimized when a polyvinyl alcohol (PVA) grinding wheel was used as the grinding wheel and tap water was used as the grinding fluid at an attachment pressure of 0.2 MPa and a rotational speed of 150 rpm. It was shown that a surface roughness of up to 0.3 μm in terms of the arithmetic average height could be achieved if the above conditions were satisfied during wet grinding. The final surface roughness was 0.03 μm after finish polishing by buffing. Since the wet grinding of steel has yet to be studied in detail, this article will serve as a valuable reference. (Link to Publication Site) ● Publication site (DOI): 10.3390/jmmp4040114 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.3390/jmmp4040114 (DOI: 10.3390/jmmp4040114)
5.	今村雅紀, Akira Mizobuchi, 深谷康太 and 佐久間淳 : 炭素添加ペーストによる鋼板のガス溶断におけるスラグ固着抑制, Journal of Japan Society for Design Engineering, Vol.55, No.11, 673-680, 2020. (Link to Publication Site) ● Publication site (DOI): 10.14953/jjsde.2020.2890 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1391693801404333184 ● Search Scopus @ Elsevier (DOI): 10.14953/jjsde.2020.2890 (DOI: 10.14953/jjsde.2020.2890, CiNii: 1391693801404333184)
6.	今村雅紀, Akira Mizobuchi, Ryotaroh Tanimoto and 佐久間淳 : Mechanics of Slag Control in Gas Cutting of Steel Plate by Slag Pasting, Journal of Japan Society for Design Engineering, Vol.55, No.1, 33-42, 2020. (Summary) The gas cutting process is one of the primary methods employed for cutting steel sheets. However, during gas cutting, the adhesion of slag to the back surface of the steel plate cannot be avoided. In this study, to prevent slag adhesion on the bottom plate, the bottom plate was coated with an iron oxide paste. Several aspects such as the effect of iron oxide paste on slag adhesion, discharge and separation of slag from the steel plates back surface, and the formation and growth of adhesive slag were experimentally investigated. Consequently, based on the concept that slag is separated from the steel plate with paste, it can be concluded that the proposed iron oxide pasting method aids in easy removal of adhered slag. (Link to Publication Site) ● Publication site (DOI): 10.14953/jjsde.2019.2866 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390002184861361536 ● Search Scopus @ Elsevier (DOI): 10.14953/jjsde.2019.2866 (DOI: 10.14953/jjsde.2019.2866, CiNii: 1390002184861361536)
7.	M.S.A. Aziz, Akira Mizobuchi, R. Izamshah, M.S. Kasim, E. Mohamad, M.R. Salleh and Tohru Ishida : Helical Micro-Hole Drilling of Chemically Strengthened Glass Using Capsule-shaped Electroplated Diamond Tool, Journal of Advanced Manufacturing Technology, Vol.13, No.2, 2019. (Summary) This study investigates the microhole drilling performance of chemically strengthened glass plate by using a capsuleshaped electroplated diamond tool and the helical drilling method. Three different helical pitch conditions were tested to drill holes with a diameter of 1 mm. The number of drilled holes, grinding force, and maximum crack size were measured along with the observation of the drilled holes to evaluate the performance of the microhole drilling. From the experimental results, it was found that as the size of helical pitch decreased, the number of drilled holes increases where the average grinding force generated becomes smaller. By using small helical pitch condition, 43 holes could be drilled but the maximum crack size generated at the outlet side of the drilled hole is not able to achieve the highgrade quality compared to the inlet side. The resultant grinding force generated when the tool tip nearing the outlet side of the glass plate has caused the large crack at a certain position on the outlet side. (Link to Search Site for Scientific Articles) ● Summary page in Scopus @ Elsevier: 2-s2.0-85074904147 (Elsevier: Scopus)
8.	Akira Mizobuchi, Aziz Sanusi Abdul Mohd, Izamshah Raja and Tohru Ishida : Chip Discharge Performance of Micro-hole Drilling through a Glass Plate using an Electroplated Diamond Tool with Different Drill Bits, International Journal of Precision Engineering and Manufacturing, Vol.19, No.9, 1273-1280, 2018. (Summary) This research aims to identify a high-quality, efficient, and low-cost micro-hole drilling process through glass plates that employs an electroplated diamond tool with different drill bits. Three different drill bits were tested to determine how varying the chip discharge volume influences chip discharge performance, which is an important factor that affects the effectiveness of the drilling process. The chip discharge performance of each electroplated diamond tool was experimentally investigated by observing the drilling quality and the number of the drilled holes. From the experimental results, it was found that the drilled chips could not discharge smoothly when the drill bit possesses a small chip discharge volume, leading to the drill bit breaking, which thus limits the number of drilled holes. Furthermore, the changes in thrust force and the crack size were high, and there were also cracks on the drilled glass plate. However, drilling with a drill bit that possesses a larger chip discharge volume resulted in excellent chip discharge performance and increased the number of drilled holes. This type of drill bit is effective in drilling holes through glass plates, with minimum hole defects and no issues associated with chips clogging the hole during drilling. (Link to Publication Site) ● Publication site (DOI): 10.1007/s12541-018-0151-7 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.1007/s12541-018-0151-7 (DOI: 10.1007/s12541-018-0151-7)
9.	Kota Honda, Akira Mizobuchi and Tohru Ishida : Prevention of chip adhesion by acting non-ionic surfactant physical properties, Journal of the Japan Society for Abrasive Technology, Vol.62, No.6, 324-329, 2018. (Summary) 穴加工において，切りくずは穴内に残留しやすく，工具に付着しやすい状況にある.本研究室では先端部を半球形状とした円筒形ダイヤモンド電着工具の側面の一部を削り取り，ここが切りくず排出の役割を担うストレート面付き工具を開発した.この工具は，加工中に生成される切りくずを効率的に排出し，工具への切りくず付着を抑えていた.しかし，少量の切りくずが穴内に残留し，加工穴数の増加に伴い，切りくず排出領域に付着した.本研究は加工液に含有する界面活性剤の物性に着目し，この物性が切りくず付着に及ぼす影響について検討した. (Link to Publication Site) ● Publication site (DOI): 10.11420/jsat.62.324 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390564238049483520 ● Search Scopus @ Elsevier (DOI): 10.11420/jsat.62.324 (DOI: 10.11420/jsat.62.324, CiNii: 1390564238049483520)
10.	Akira Mizobuchi, Kota Honda and Tohru Ishida : Improved Chip Discharge in Drilling of Glass Plate Using Back Tapered Electroplated Diamond Tool, International Journal of Precision Engineering and Manufacturing, Vol.18, No.9, 1197-1204, 2017. (Summary) Previous studies of a through-hole drilling for hard and brittle materials using electroplated diamond tool devised by the authors have led to several challenges such as a restraint of crack size at the inlet and outside, a suppression of chip adhesion on the tool and an improvement of processing efficiency. In this paper, the devised tool was redesigned in order to restrain cracks of the inlet side as well as to improve the chip discharge. The new design of the tool featured a back taper which was expected to bring an effect of restraining crack size by preventing any interference between the tool cylindrical surface and the hole inner surface during drilling process. In addition, the chip can be discharged from the drilled hole through the back taper. Results of the experiment indicated that by providing the back tapered shape, the width of the inlet hole can be reduced slightly as the interference between the glass plate and the tool cylindrical surface was suppressed. Furthermore, the adhesion of chip on tool can be restrained by using the tool with large chip discharge space as the chip was easily discharged to the outside of the hole. Moreover, an abrupt change in thrust force was not detected, and the crack width was found in small size. (Link to Publication Site) ● Publication site (DOI): 10.1007/s12541-017-0140-2 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.1007/s12541-017-0140-2 (DOI: 10.1007/s12541-017-0140-2)
11.	Kota Honda, Akira Mizobuchi and Tohru Ishida : Investigation of Grinding Fluid for Prevention of Chip Adhesion in Miniature Drilling of Glass Plate Using Electroplated Diamond Tool, Key Engineering Materials, Vol.749, 52-57, 2017. (Link to Publication Site) ● Publication site (DOI): 10.4028/www.scientific.net/KEM.749.52 (Link to Search Site for Scientific Articles) ● Summary page in Scopus @ Elsevier: 2-s2.0-85028732508 (DOI: 10.4028/www.scientific.net/KEM.749.52, Elsevier: Scopus)
12.	Aziz Sanusi Abdul Mohd, Redzuwan Ikram Bahrin, Zaimi Muhammad, Izamshah Raja, Kasim Shahir Mohd, Ali Amran Md Mohd, Akira Mizobuchi and Tohru Ishida : Mechanical Properties and Cutting Performance of Electroless Ternary Ni-W-P Coated Cutting Tools, Jurnal Teknologi, Vol.76, No.5-2, 101-104, 2017. (Link to Publication Site) ● Publication site (DOI): 10.11113/jt.v79.11291 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.11113/jt.v79.11291 (DOI: 10.11113/jt.v79.11291)
13.	Akira Mizobuchi, Yuki Kagawa and Tohru Ishida : Miniature Drilling of Chemically Strengthened Glass Plate Using Electroplated Diamond Tool, International Journal of Automation Technology (IJAT), Vol.10, No.5, 780-785, 2016. (Summary) It is well known that chemically strengthened glass plate has excellent strength and hardness properties. These characteristic properties are advantageous for the touch screens used in mobile devices. However, they are detrimental to the process of machining the glass plate. For example, chipping and crack occur around the inlet and outlet of the drilled hole, and the rate of tool wear is significant. Therefore, the surface quality and machining efficiency are low. The drilling process is extremely difficult. In this study, we de- scribe the use of a miniature drilling method to achieve high-quality drilled holes in chemically strengthened glass plate using an electroplated diamond tool with a diameter of 1 mm or less. Using the developed tool with a diameter of 0.5 mm, it is demonstrated that the conventional drilling method can be used to drill a through-hole in the glass plate. (Link to Publication Site) ● Publication site (DOI): 10.20965/ijat.2016.p0780 (Link to Search Site for Scientific Articles) ● Summary page in Scopus @ Elsevier: 2-s2.0-84988920602 (DOI: 10.20965/ijat.2016.p0780, Elsevier: Scopus)
14.	Tohru Ishida, Yuichi Okahara, Masahiko Kita, Akira Mizobuchi, Keiichi Nakamoto and Yoshimi Takeuchi : Fundamental Study on Hole Fabrication inside a Hole by Means of Electrical Discharge Machining, International Journal of Automation Technology (IJAT), Vol.8, No.5, 773-782, 2014. (Link to Publication Site) ● Publication site (DOI): 10.20965/ijat.2014.p0773 (Link to Search Site for Scientific Articles) ● Summary page in Scopus @ Elsevier: 2-s2.0-84906978498 (DOI: 10.20965/ijat.2014.p0773, Elsevier: Scopus)
15.	Akira Mizobuchi, Izumi Tada and Tohru Ishida : Development of electroplated diamond tool for fracture size minimization in miniature drilling of glass plate, Journal of the Japan Society for Abrasive Technology, Vol.58, No.5, 321-327, 2014. (Summary) To minimize fracture size in through-hole drilling of glass plate, this paper examines drilling behavior of commercial tool shape, as well as the availability of a tool shape designed by the authors. The chipping size occurring at the hole edge is related to the form of tool end and the chip elimination efficiency. The designed tool, which is an electroplated diamond tool with a diameter of 1 mm, has a unique shape. The tool shape has a hemispherical tool end and a few straight planes. During drilling, the hole enlarges gradually due to the hemispherical shape of the tool end. The occurrence of chipping at the edge of the exit hole is reduced because the hemispherical shape can reduce the abrupt decrease in drilling force. That is, large chipping and cracking corresponding to the hole diameter can be suppressed. In addition, the straight planes play a role in eliminating chipping, and the adhesion of chips is suppressed. The results of this investigate indicate that the designed tool allows drilling of drilling cycle. (Keyword) electroplated diamond tool / miniature drilling / through-hole / chip removal / chipping-less / glass plate (Link to Publication Site) ● Publication site (DOI): 10.11420/jsat.58.321 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390001204334324224 ● Search Scopus @ Elsevier (DOI): 10.11420/jsat.58.321 (DOI: 10.11420/jsat.58.321, CiNii: 1390001204334324224)
16.	Akira Mizobuchi, Masahiro Masuda, Teruo Nogami, Hitoshi Ogawa and Tohru Ishida : Restraint of Thermal Crack on Rake Face of Cermet Tool in Intermittent Cutting, International Journal of Automation Technology (IJAT), Vol.7, No.3, 263-269, 2013. (Link to Publication Site) ● Publication site (DOI): 10.20965/ijat.2013.p0263 (Link to Search Site for Scientific Articles) ● Summary page in Scopus @ Elsevier: 2-s2.0-84877099670 (DOI: 10.20965/ijat.2013.p0263, Elsevier: Scopus)
17.	坂東慎之介, Junichi Hino, Hiromu Iwata, 赤木良, Akira Mizobuchi and Koji Hashimoto : Relationship Between In-Plane Stress and Modal Shape of Disk, Transactions of The Japan Society of Mechanical Engineers, Series C, Vol.78, No.787, 892-901, 2012. (Summary) In this paper, we analytically considered the effects of the in-plane stress of the disk on the changes of modal shape. The purpose of this study is to confirm whether the modal shape changes according to the in-plane stress. The results make it clear that the in-plane stress changes the modal shape and its curvature. The curvature of the modal shape is proportional to the reciprocal number of the bending stiffness. Thus, it is confirmed that the in-plane stress serves to change the bending stiffness distributions on the disk. Moreover, the natural frequencies of the disk are evaluated by two energy methods in which the variations of modal shapes are considered or not. The difference in the natural frequencies from two energy methods shows the effect of the changes in the modal shape of the disk due to the small difference in the results of the energy methods (maximum difference of strain energy: 7.1%). Finally, the two energy methods are compared to investigate the effects on the natural frequencies with hammering test. The experimental results show the traditional energy method is allowed to evaluate the natural frequencies practically. (Keyword) modal analysis / Natural Frequency / Continuous System / Disk Vibration / Circular Saw / Energy Method / Galerkin Method (Link to Publication Site) ● Publication site (DOI): 10.1299/kikaic.78.892 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390282681364143872 ● Search Scopus @ Elsevier (DOI): 10.1299/kikaic.78.892 (DOI: 10.1299/kikaic.78.892, CiNii: 1390282681364143872)
18.	坂東慎之介, Junichi Hino, 岩田弘, Akira Mizobuchi and 橋本浩二 : A Study on the Transverse Vibration of the High Speed Rotating Circular Saw and the Countermeasure, Transactions of The Japan Society of Mechanical Engineers, Series C, Vol.77, No.784, 4391-4401, 2011. (Summary) In this paper, we considered a new tensioning method by the centrifugal stress on the base metal of rotating circular saw. First, the residual stress distribution on the base metal generated by roll tensioning and the centrifugal stress distribution was compared by calculation using a disk model (Φ305mm). As the results, it was confirmed that the tangential stress ςϑR by centrifugal force at outer of disk became larger than the residual stress ςϑP by roll tensioning when the rotational speed is higher than 7300 rpm. This rotational speed is larger than 1.4 times of the critical speed (resonance rotational speed) of disk. And it is concerned that the unstable vibration may be generated. Therefore, we investigated the behavior of the unstable vibration and established the countermeasure by the rotating experiment. As the results of the rotating experiment, we considered that the unstable vibration is the self-excited vibration as the negative damping caused by the effects of the high-speed airflow around the rotating disk. According to this consideration, we investigated the relationship of the damping coefficient of disk and the behavior of the unstable vibration. As the result, it is confirmed that the rotational speed of the unstable vibration occurred becomes higher with the increase of the damping coefficient of disk. It is confirmed that it is possible to suppress the unstable vibration of disk and provide the tensioning effect by centrifugal force of disk. (Keyword) Vibration of Continuous System / Damping / Self-Excited Vibration / Circular Saw / Tensioning Effect / Centrifugal Stress / Disk (Link to Publication Site) ● Publication site (DOI): 10.1299/kikaic.77.4391 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390001206386342656 ● Summary page in Scopus @ Elsevier: 2-s2.0-84859567333 (DOI: 10.1299/kikaic.77.4391, CiNii: 1390001206386342656, Elsevier: Scopus)
19.	Shinnosuke Bando, Junichi Hino, Hiromu Iwata, Ryo Akagi, Akira Mizobuchi and Koji Hashimoto : Relationship Between In-plate Stress and Modal Shape of Disk, Journal of System Design and Dynamics, Vol.5, No.7, 1498-1507, 2011. (Link to Publication Site) ● Publication site (DOI): 10.1299/jsdd.5.1498 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.1299/jsdd.5.1498 (DOI: 10.1299/jsdd.5.1498)
20.	Akira Mizobuchi and Ogawa Hitoshi : Through-Hole Drilling of Glass Plate Using Electroplated Diamond Tool, Applied Mechanics and Materials, Vol.52-54, 384-388, 2011. (Link to Publication Site) ● Publication site (DOI): 10.4028/www.scientific.net/AMM.52-54.384 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.4028/www.scientific.net/AMM.52-54.384 (DOI: 10.4028/www.scientific.net/AMM.52-54.384)
21.	Akira Mizobuchi, 小川仁 and Masahiro Masuda : Drilling conditions and crack restraint of step drilling method in through-hole drilling of glass plate, Journal of the Japan Society for Precision Engineering, Vol.77, No.3, 296-300, 2011. (Summary) Hard and brittle materials such as ceramics and glass are not only difficult-to-machine but also occur easily cracks at the exit surface in through-hole drilling. This paper deals with through-hole drilling of soda-lime glass plate using an electroplated diamond tool in order to find out drilling conditions for smaller cracks, higher processing efficiency and longer tool life. The crack is smallest under a spindle revolution of 15000min-1, a feed speed of 1mm/min, a step feed of 0.1mm/step and a mesh size of #600. A large decrease of thrust force results from the penetration that the large cracks occur. The maximum diameter included the crack is smaller than that of the tool. The residual is removed as the tool feeds. The cracks at the exit increase with the drilling numbers. The drilling time is about 430s per a hole. (Keyword) glass plate / electroplated diamond tool / through-hole / thrust force / cracks / drilling conditions / glass plate / electroplated diamond tool / through-hole / thrust force / cracks / drilling conditions (Link to Publication Site) ● Publication site (DOI): 10.2493/jjspe.77.296 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390282679775025792 ● Summary page in Scopus @ Elsevier: 2-s2.0-79953886328 (DOI: 10.2493/jjspe.77.296, CiNii: 1390282679775025792, Elsevier: Scopus)
22.	Akira Mizobuchi, 小川仁 and Tatsuo Sasaoka : Grinding force and crack size on through-hole drilling of glass plate used electroplated diamond tool in helical drilling, Journal of the Japan Society for Abrasive Technology, Vol.54, No.12, 731-736, 2010. (Keyword) crack size / large-scale fracture / small-scale fracture / grinding force / through-hole / glass plate / electroplated diamond tool / helical drilling (Link to Publication Site) ● Publication site (DOI): 10.11420/jsat.54.731 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390282679311103744 ● Search Scopus @ Elsevier (DOI): 10.11420/jsat.54.731 (DOI: 10.11420/jsat.54.731, CiNii: 1390282679311103744)
23.	Akira Mizobuchi and 小川仁 : ダイヤモンド電着工具によるガラス基板への通り穴加工時の加工精度と加工能率, Journal of the Japan Society for Abrasive Technology, Vol.54, No.3, 145-150, 2010. (Keyword) glass plate / electroplated diamond tool / through hole / helical drilling / drilling conditions / crack size / processing efficiency (Link to Publication Site) ● Publication site (DOI): 10.11420/jsat.54.145 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390282679311067520 ● Search Scopus @ Elsevier (DOI): 10.11420/jsat.54.145 (DOI: 10.11420/jsat.54.145, CiNii: 1390282679311067520)
24.	Akira Mizobuchi and Ogawa Hitoshi : Study on Applying Cavitation in Micro Drilling of Austenite Stainless Steel, --- Control of Burr in Through Hole Drilling ---, International Journal of Automation Technology (IJAT), Vol.4, No.1, 15-20, 2010. (Link to Publication Site) ● Publication site (DOI): 10.20965/ijat.2010.p0015 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.20965/ijat.2010.p0015 (DOI: 10.20965/ijat.2010.p0015)
25.	Akira Mizobuchi, Masahiro Masuda and Higaino Tasuku : Influence of Tapping Conditions and Tool Geometries on Tool Life in Tapping of Inconel 625®, Key Engineering Materials, Vol.407 - 408, 33-36, 2009. (Summary) Inconel 625® contained Ni 61%, Cr 21.5%, Mo 9% and so on is one of the nickel base super heat resistant alloys and is used for parts in food machine. The nickel base alloys are generally difficult-to-cut materials because of high thermal resistance, high work hardening, high chemical activity and low thermal conductivity. In tapping, furthermore, the tool failure such as chippings, cracks and tool fractures has been frequently observed owing to low rigidity of tool. This paper deals with the influence of surface treatment, tool geometry etc. on the cutting phenomena such as the tool failure, the cutting force and so on when tapping Inconel 625® using the high speed steel tool. The damage of oxidizing tool is slower than that of nitriding tool. The large thrust force in backward tapping causes rapid tool fractures. The smaller helix angle leads to the lower thrust force in backward tapping. (Link to Publication Site) ● Publication site (DOI): 10.4028/www.scientific.net/KEM.407-408.33 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.4028/www.scientific.net/KEM.407-408.33 (DOI: 10.4028/www.scientific.net/KEM.407-408.33)
26.	小川仁, Masahiro Masuda and Akira Mizobuchi : Effects of Cavitation on Burr and Tool Life in Micro Through Hole Drilling (3rd Report), --- Researches on Applying Ultrasonic Vibration on Machining Fluid ---, Journal of the Japan Society for Precision Engineering, Vol.74, No.10, 1092-1096, 2008. (Summary) Micro drilling is required in order to produce nozzles for fiber, fuel and so on. This paper deals with cavitation effects when applying ultrasonic vibration on machining fluid in micro through-hole drilling. In addition, burr and tool life are investigated when micro-drilling on SUS304 under various feed speeds. The obtained results are as follows. Cavitation occurs in a blister generated by machining fluid at the exit hole in through-hole drilling. The burr height in cavitation assisted drilling is smaller than that in conventional one and increases with the drilling number. The tool life in through-hole drilling is same as in blind hole one under various feed speeds and is the longest at a feed speed of 200mm/min. The effect of cavitation on the burr removal was investigated using B_4C powder and was observed at the early drilling holes. (Keyword) ultrasonic vibration / cavitation / burr / SUS304 / tool life (Link to Publication Site) ● Publication site (DOI): 10.2493/jjspe.74.1092 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390282679773149440 ● Summary page in Scopus @ Elsevier: 2-s2.0-77955360332 (DOI: 10.2493/jjspe.74.1092, CiNii: 1390282679773149440, Elsevier: Scopus)
27.	Akira Mizobuchi, Hitoshi Takagi, and Junichi Hino : Drilling machinability of resin-less "green" composites reinforced by bamboo fiber, WIT Transactions on the Built Environment, Vol.97, 185-194, 2008. (Summary) この論文では，穴あけ加工時における竹繊維グリーンコンポジットの被削性について述べる．グリーンコンポジット，竹および杉を鉄工用ドリル，木工用ドリルを使って穴あけ加工し，スラスト力，比切削抵抗，加工穴の性状，切りくず形状および工具摩耗によって被削性を検討した．レジンレス竹繊維強化グリーンコンポジットのスラスト力は，他の被削材に比べて大きく，切りくずは非常に長かった．鉄工用ドリルを用いて，切削速度15m/min，送り0.03mm/revで穴あけ加工を行うとレジンレス竹繊維強化グリーンコンポジットの加工穴に発生するバリやコバ崩れは小さかった．穴周りの欠陥を少なくするためには，グリーンコンポジットの単繊維を鋭い切れ刃で切削しなければならず，工具としてダイヤモンド電着工具の使用が考えられる． (Link to Publication Site) ● Publication site (DOI): 10.2495/HPSM080201 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.2495/HPSM080201 (DOI: 10.2495/HPSM080201)
28.	Hitoshi Takagi, Akira Mizobuchi, Koji Kusano and Yoshihito Okitsu : Flexural properties of all bamboo "green'' composites, WIT Transactions on the Built Environment, Vol.97, 167-173, 2008. (Summary) 本論文は，竹の強度改善を目的としてマダケに対して種々の条件でホットプレス成形を行った結果をまとめたものである．評価すべき強度特性として，3点曲げ強度，曲げ弾性率，圧縮強度，アイゾット衝撃強度に注目した．その結果，曲げ強度，圧縮強度，衝撃強度はホットプレス成形温度の上昇につれて向上し，160℃でピーク値を示すことが分かった．さらに内部組織の調査から，維管束部と柔細胞部の圧縮変形により試料の高密度化が行われ，この密度向上に対応して各種強度特性が向上することが分かった． (Link to Publication Site) ● Publication site (DOI): 10.2495/HPSM080181 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.2495/HPSM080181 (DOI: 10.2495/HPSM080181)
29.	小川仁, Masahiro Masuda and Akira Mizobuchi : Relation between Drilling Conditions and Tool Life in Micro Drilling(2nd Report), --- Researches on Applying Ultrasonic Vibration on Machining Fluid ---, Journal of the Japan Society for Precision Engineering, Vol.73, No.5, 578-582, 2007. (Summary) The most important problem in the micro drilling of ductile materials such as steels is a tool breakage due to poor tool rigidity and chip removal. The cavitation, which is generated by ultrasonic vibration applied on machining fluid, accelerates the chip removal. This paper deals with thrust force, tool life, chip geometry etc. for various drilling conditions in drilling SUS304 with (Ti,Al)N coated tool with a diameter of 0.1mm. In addition, the effects of pre-drilling using a center drill on tool life and of G73 cord on the machining efficiency are investigated. The obtained results are as follows. The thrust force hardly varies with feed speed and increases with step feed. The micro drilling assisted with cavitation achieves very longer tool life compared to the conventional drilling. Furthermore, the quick bite leads to longer tool life. The smaller feed speed and the larger step feed, respectively, bring out the shorter tool life. (Keyword) ultrasonic vibration / micro drilling / cavitation / SUS304 / tool life (Link to Publication Site) ● Publication site (DOI): 10.2493/jjspe.73.578 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390001204798360448 ● Search Scopus @ Elsevier (DOI): 10.2493/jjspe.73.578 (DOI: 10.2493/jjspe.73.578, CiNii: 1390001204798360448)
30.	Masahiro Masuda, Akira Oyama, 佐々木健一, 小川仁, 半田伸一 and 武知清孝 : Through Hole Drilling of Alumina Ceramic with Electroplated Diamond Tool (2nd Report), --- Effects of Oil Through and Mesh Size on Drilling Performance ---, Journal of the Japan Society for Precision Engineering, Contributed Papers, Vol.72, No.7, 914-918, 2006. (Summary) 直径1mmの通し穴加工において工具先端領域に付着する切りくずの除去および電着工具の安定性を上げるために，オイルスルー方式や粒度の影響を検討している．低速域の切りくずの付着を少なくし，工具寿命を長くするとともに穴直径の寸法精度を良くする．粒度が大きいほどスラスト力と欠け幅は小さくなる． (Keyword) electroplated diamond tool / oil through / mesh size / alumina ceramic / drilling (Link to Publication Site) ● Publication site (DOI): 10.2493/jspe.72.914 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390282680258377600 ● Search Scopus @ Elsevier (DOI): 10.2493/jspe.72.914 (DOI: 10.2493/jspe.72.914, CiNii: 1390282680258377600)
31.	小川仁, Masahiro Masuda, Akira Oyama and 鴻上裕史 : 小径穴あけ加工における油剤のキャビテーション効果(第1報), Journal of the Japan Society for Precision Engineering, Contributed Papers, Vol.72, No.5, 626-630, 2006. (Summary) 小径ドリル加工において，工作液に超音波振動を付与することにより生じるキャビテーション現象を応用する手法を提案し，工具損傷，工具寿命，表面粗さなどを検討した．加工穴内部から生じるキャビテーションにより切りくず排出性が向上し，工具チゼル部や逃げ面での凝着の減少により，工具寿命が延び，加工面粗さの低下が確認できた． (Keyword) ultrasonic vibration / micro drilling / cavitation / SUS304 / tool life (Link to Publication Site) ● Publication site (DOI): 10.2493/jspe.72.626 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390001205281674240 ● Search Scopus @ Elsevier (DOI): 10.2493/jspe.72.626 (DOI: 10.2493/jspe.72.626, CiNii: 1390001205281674240)
32.	Teruaki Ito and Akira Oyama : Efforts of Creative Improvement on Creativity Education, Journal of Japanese Society for Engineering Education, Vol.54, No.2, 9-14, 2006. (Summary) Creative education cannot be achieved without the creative efforts by the teachers who teach the class. This paper describes what the creativity education means today from the point of view of the teachers who teach the fundamental creative engineering class. The assignments of the exercises in the class are derived from the creative efforts of the teaching staffs. This paper picks up some of the typical assignments of the exercises and shows what kinds of exercises are given to the students. Reviewing the results of these exercises, the paper discusses the advantages and drawbacks of the assignments in the classes for the further improvement in the next semester. -- -- (Keyword) Engineering Education / Creative Education / Development of Educational Material (Link to Publication Site) ● Publication site (DOI): 10.4307/jsee.54.2_9 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390282679469394176 ● Search Scopus @ Elsevier (DOI): 10.4307/jsee.54.2_9 (DOI: 10.4307/jsee.54.2_9, CiNii: 1390282679469394176)
33.	Masahiro Masuda, Akira Oyama, 石川嘉晃, 米延仁志 and 坂田興亜 : 磁性流体を利用したダイナミックダンパー内蔵ボーリングバーの開発(第1報), Journal of the Japan Society for Precision Engineering, Contributed Papers, Vol.71, No.2, 242-246, 2005. (Summary) 深穴の加工においてびびり振動対策は極めて重要である．磁性流体を減衰剤に使用して減衰能の大きい中ぐりバイトを開発するために，磁性流体の効果を実験的に評価したものである．市販バイトと同程度の減衰能が得られることがわかった． (Keyword) boring bar / dynamic damper / magnetic fluid / damping ratio (Link to Publication Site) ● Publication site (DOI): 10.2493/jspe.71.242 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390001205280016000 ● Search Scopus @ Elsevier (DOI): 10.2493/jspe.71.242 (DOI: 10.2493/jspe.71.242, CiNii: 1390001205280016000)
34.	Teruaki Ito and Akira Oyama : Studies on the effect of feedback-based evaluation method in fundamental creative engineering class, Journal of Japanese Society for Engineering Education, Vol.53, No.1, 41-46, 2005. (Summary) 1年前期に開講している創造基礎実習で取り入れたカード型フィードバック評価システムを紹介し，本年度の授業で導入することにより学生の創造力育成における主体的学習能力向上を目指す試みについて述べる．本稿では創造基礎実習の概要を簡単に述べた後，このフィードバック評価方式について紹介し，授業評価アンケートの結果を踏まえてその教育的効果に関する結果と考察について述べる． (Keyword) Engineering Education / Creativity Education / Feedback Evaluation / Card-based Evaluation System (Link to Publication Site) ● Publication site (DOI): 10.4307/jsee.53.41 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390001204492292096 ● Search Scopus @ Elsevier (DOI): 10.4307/jsee.53.41 (DOI: 10.4307/jsee.53.41, CiNii: 1390001204492292096)
35.	Masahiro Masuda, Akira Oyama, 森義典, 半田伸一, 武知清孝 and 小川仁 : Through Hole Drilling of Alumina Ceramic with Electroplated Diamond Tool (1st Report) : Investigation of Tool Geometry and Machining Conditions, Journal of the Japan Society for Precision Engineering, Contributed Papers, Vol.71, No.1, 105-109, 2005. (Summary) In through hole drilling of hard and brittle materials such as ceramics, glass etc., cracks occur at the exit surface. This paper deals with a miniature drilling of Al_2O_3 (1600HV) using an electroplated diamond tool. The main purpose of this research is to find out tool geometries and drilling conditions in which the exit cracks are very small and the tool life is very long. A tool with rectangle section and bowl end is effective on the chip removal and the control of fracture size. A method assisted by step feed, in addition, produces a numerous drilling number of 100th or more at a workpiece with a thickness of 3.4mm. The desirable drilling speed should be 50-100m/min and the preferable feed rate arrangement should be 5mm/min at the entrance while 1.5mm/min at the exit. When the tool end reaches the position about 40m from the exit surface, a hole passes through and large cracks occur around the hole. At the same time, the thrust force falls rapidly. As the tool end moves further, the hole diameter increases and the fracture size decreases. However, large cracks may occur rarely in the progressive process. (Keyword) miniature drilling / alumina ceramic / electroplated diamond tool / tool geometry / drilling cycle (Link to Publication Site) ● Publication site (DOI): 10.2493/jspe.71.105 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390282680256783360 ● Search Scopus @ Elsevier (DOI): 10.2493/jspe.71.105 (DOI: 10.2493/jspe.71.105, CiNii: 1390282680256783360)
36.	Akira Oyama, Hitoshi Takagi, Kazuya Kusaka and Keitaro Horikawa : The Content and Effects of Machine Creation Laboratory Using Lego Mindstorms, Journal of Japanese Society for Engineering Education, Vol.52, No.4, 20-24, 2004. (Summary) A machine creation laboratory has been performed with creating robots which are called the autonomous robots. This paper describes specific examples of the laboratory which was held by using Lego Mindstorms, and then introduces the outcome of educative effects in engineering education. The purpose of this laboratory is not only the improvement of problem-creation and problem-solving ability but also that of the group activities, the writing reports and the presentations. For example, students experienced that they could create ideas for resolving problems by themselves, discuss the robot mechanism in a group through the laboratory. It can be seen that the use of these robots for engineering education is considerably effective. (Keyword) Education Engineering / Lego Mindstorms / Autonomous Robot / Educative Effect (Link to Publication Site) ● Publication site (DOI): 10.4307/jsee.52.4_20 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390282679471098496 ● Search Scopus @ Elsevier (DOI): 10.4307/jsee.52.4_20 (DOI: 10.4307/jsee.52.4_20, CiNii: 1390282679471098496)
37.	Masahiro Masuda, Akira Oyama, Hiromu Iwata, Koji Hashimoto and 大久保和男 : Study on Cutting-off Used Tipped-Saw when Sawing Steels (2nd Report), --- Relation Between Tensioning of Disk and Sawing Performance ---, Journal of the Japan Society for Precision Engineering, Vol.69, No.2, 237-241, 2003. (Summary) This paper aims at developing of tipped-saw suited for cutting-off of various steels, and deals with an application of residual tensile stress which occurs in the outer aria of disk when brazing tips. Disk material is first investigated from the viewpoint of vibration characteristics. Next, tipped-saws utilized the thermal stress are produced with SK5 displayed the largest damping ratio and then the sawing performances such as tool failure, flank wear rate, surface roughness and so on are estimated. In addition, the results are compared with tipped-saws tensioned near the bottom of saws by rolling in order to ease the excessive tensile thermal stress. The examinations are carried out by two kinds of tip material i.e. cemented carbide and cermet. The obtained results are as follows. When the feed rate is at 0.07-0.10 mm/tooth, surface roughness and noise level are smaller. Tool fracture did not occur at 300 cutting numbers for cemented carbide, while 5 teeth of the cutting edge fractured up to 210 cutting numbers for cermet. Compared with tipped-saw of the only brazing, a deformed disk leads to higher elastic rigidity and smaller surface roughness. (Keyword) sawing / tensioning methods / brazing / tool failure / surface roughness (Link to Publication Site) ● Publication site (DOI): 10.2493/jjspe.69.237 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390282679773168640 ● Summary page in Scopus @ Elsevier: 2-s2.0-30744447659 (DOI: 10.2493/jjspe.69.237, CiNii: 1390282679773168640, Elsevier: Scopus)
38.	Akira Oyama, Masahiro Masuda, 岩田弘, 橋本浩二 and 大久保和男 : Study on Cutting-off used Tipped-Saw when Sawing Steels (1st Report) : New Tensioning Methods and Property of Disk, Journal of the Japan Society for Precision Engineering, Vol.68, No.1, 108-112, 2002. (Summary) An operation called 'tensioning' is performed on the disk of tipped-saw used in the cutting-off process in order to add a residual tensile stress and to raise consequently a natural frequency. The conventional tensioning method which deforms plastically the disk by roller and/or hammer requires a very high skill. This paper proposes two tensioning methods as named 'expansion fit' and 'internal pressure' in order to simplify the operation, and investigates the property of disk such as natural frequency, rigidity etc. In addition, the cutting-off performance of these tipped-saws is compared with that of the conventional method. The new methods proposed can prepare an adequate residual stress in the disk and consequently increase the natural frequency and the rigidity as same as the conventional method. When sawing S45C steel under low cutting speed, however, the cutting edge has broken down due to large amplitude of run-out of the disk and high sawing force from the beginning of sawing. (Keyword) tipped-saw / tensioning methods / natural frequency / tool failure / sawing force (Link to Publication Site) ● Publication site (DOI): 10.2493/jjspe.68.108 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390282679772795264 ● Summary page in Scopus @ Elsevier: 2-s2.0-31344462105 (DOI: 10.2493/jjspe.68.108, CiNii: 1390282679772795264, Elsevier: Scopus)
39.	Masahiro Masuda, T Nogami, Akira Mizobuchi and T Nagahama : The Behavior of Tool Life and Cutting Temperature on High Speed Milling of Hardened Alloy Tool Steels, Journal of the Japan Society for Precision Engineering, Vol.66, No.11, 1745-1749, 2000. (Summary) A high speed milling is being received with keen interest in the manufacturing shop where cut hardened alloy tool steels used for metal molds. However, there are some difficult problems, such as high cutting temperature, low stiffness of NC machine, low follow-up ability of NC servo motor etc. This paper deals with cutting phenomena such as cutting temperature, tool life etc. when milling the steels using cemented carbide with grade K1O under various cutting conditions. Furthermore, based on the cutting temperature measured using a work-tool thermocouple technique, the tool wear rate is discussed. The results obtained are as follows. The longest tool life is obtained at cutting speed of 110-130 m/min and feed of about O.05 mm/tooth. The relationship between work hardness and tool life is linear for each cutting speed on the semilogarithmic coordinate. When the cutting speed is 130 m/min or more, the tool life correlates very closely with the cutting temperature. (Ti, Al)N coated tool has longer tool life of about 2 times and higher thermal resistance of about 100 compared with carbide tool. (Keyword) high speed milling / hardened steel / tool life / cutting temperature (Link to Publication Site) ● Publication site (DOI): 10.2493/jjspe.66.1745 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390001204797896960 ● Summary page in Scopus @ Elsevier: 2-s2.0-29944447906 (DOI: 10.2493/jjspe.66.1745, CiNii: 1390001204797896960, Elsevier: Scopus)

Academic Letter:

1.	Akira Mizobuchi, Yasuhiro Iwamoto and Tohru Ishida : Slanting-hole drilling of glass plate using an electroplated diamond tool, Journal of the Japan Society for Abrasive Technology, Vol.58, No.10, 658-659, 2014. (Summary) The utility of slanting-hole drilling using an electroplated diamond tool of small-diameter devised by the authors was investigated. As with straight-hole drilling, a normal drilling cycle could be adopted with slanting-hole drilling because the unique shape of the tool increases chip discharge. In addition, the drilled hole showed a small degree of chipping without using an underlay board and/or ultrasonic wave instrument. The chipping width was influenced by the behavior of the axial component of the grinding force before completion of the drilling process. (Keyword) slanting-hole / electroplated diamond tool / glass plate / miniature drilling / chipping-less (Link to Publication Site) ● Publication site (DOI): 10.11420/jsat.58.658 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390282679311011840 ● Search Scopus @ Elsevier (DOI): 10.11420/jsat.58.658 (DOI: 10.11420/jsat.58.658, CiNii: 1390282679311011840)

Review, Commentary:

1.	Akira Mizobuchi : 硬脆材料への高品位小径貫通穴加工と電着工具の開発, 機械技術, Vol.63, No.6, 26-29, Jun. 2015. (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1520010380173268096 (CiNii: 1520010380173268096)
2.	Akira Mizobuchi : ガラス板への小径貫通穴加工技術, 機械と工具, Vol.4, No.5, 63-68, May 2014. (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1521699228432890240 (CiNii: 1521699228432890240)
3.	Akira Mizobuchi : Micro through-hole drilling of glass plate using electroplated diamond tool, Journal of the Japan Society for Abrasive Technology, Vol.58, No.2, 87-90, Feb. 2014. (Keyword) through-hole / electroplated diamond tool / tool shape / chipping / glass plate (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1520572357475170432 (CiNii: 1520572357475170432)
4.	Masahiro Masuda and Akira Oyama : 小径穴を効率的に加工する技術, 機械と工具, 16-21, Mar. 2005. (Summary) 硬脆材料に小径穴をあける加工法の動向を述べるとともに，アルミナセラミックに直径1mmのダイヤモンド電着工具で通し穴をあける場合の問題と対策について述べている．

Proceeding of International Conference:

1.	Tohru Ishida, Yuya Sato, Kohji Yamada, Akira Mizobuchi and Yoshimi Takeuchi : Development of Microrobot with Electrical Discharge Machining Function ---Realization of Hydraulically Driven Self-Mobile Unit Using Working Fluid as Hydraulic Oil---, Proc. of 2022 Int. Symp. on Flexible Automation (2022ISFA), No.ISFA2022-042, 279-281, Yokohama, Japan, Jul. 2022.
2.	Ryuta Kubota, Tohru Ishida and Akira Mizobuchi : Thin Hole Creation inside a Hole by Means of Electrical Discharge Machining ---Effect of Guide Groove Shape on Created Hole Shape---, Proc. of 10th Int. Conf. on Leading Edge Manufacturing in 21st Century (LEM21), No.G05 (82), 510-512, Kitakyushu, Japan, Nov. 2021.
3.	Takeshi Hamada, Akira Mizobuchi, Tashima Atsuyoshi, Keita Horimoto and Tohru Ishida : Trial Production of Recycled-Grinding Wheel for Wet Polishing using Spent Grinding Wheel, Proceedings of 18th International Conference on Precision Engineering, B-2-2, Nov. 2020. (Summary) Spent grinding wheel (SGW) is an industrial waste and is demanded to be recycled. Recycled-grinding wheel (RGW) which is recycled from discarded SGW, is experimentally produced by authors. The goals of RGW are to save a tool cost and to reduce an environmental load. In this study, RGW was produced by the abrasive grain of smashed SGW and the bonding material of PVA aqueous solution. Therefore, the material cost for producing RGW is very cheap. Furthermore, RGW reduces the emission amount of discarded SGW and has a good impact on the earth environment for using limited resources effectively. As experimental results, RGW was able to polish stainless steel. However, RGW was significantly susceptible to tap water for the low water-resisting property of PVA bonding material in polishing of stainless steel using wet type machine tool developed by authors. In addition, this paper was investigated a method utilizing cross-linking action by an organic titanium compound in order to improve the weak property of RGW.
4.	Tohru Ishida, Yusuke Kaide, Akira Mizobuchi and Yoshimi Takeuchi : Development of Curved Hole Electrical Discharge Machining Method ---Automatic Generation of Device Operating Command in Consideration of Realizing the Machining---, Proc. of the JSME 2020 Conf. on Leading Edge Manufacturing/Materials and Processing (LEM&P2020), No.LEMP2020-8600, 1-5, Cincinnati, Ohio, USA, Jun. 2020. (Link to Publication Site) ● Publication site (DOI): 10.1115/LEMP2020-8600 (Link to Search Site for Scientific Articles) ● Summary page in Scopus @ Elsevier: 2-s2.0-85100926972 (DOI: 10.1115/LEMP2020-8600, Elsevier: Scopus)
5.	Izamshah Raja, Rasid Firdauz Abd Muhamad, Aziz Sanusi Abdul Mohd, Kasim Shahir Mohd, Akira Mizobuchi and Tohru Ishida : Experimental Investigation of Hybrid Rotary Ultrasonic Assisted Micro Drilling on Chemically Strengthened Glass, Feb. 2018.
6.	Tohru Ishida, Shohei Tahara, Shikitaro Ogawa, Akira Mizobuchi and Yoshimi Takeuchi : Hole Fabrication inside a Hole by Means of Electrical Discharge Machining ---Expansion of Machinable Hole Diameter---, Proc. of 9th Int. Conf. on Leading Edge Manufacturing in 21st Century (LEM21), No.D32 (023), 1-5, Hiroshima, Japan, Nov. 2017. (Link to Search Site for Scientific Articles) ● Summary page in Scopus @ Elsevier: 2-s2.0-85041311711 (Elsevier: Scopus)
7.	Aziz Sanusi Abdul Mohd, Tohru Ishida, Yusuke Kaide, Chonggang Kim, Akira Mizobuchi and Yoshimi Takeuchi : Automated Teaching Process in Teaching Playback Method for Curved Hole Electrical Discharge Machining, Proceedings of International Conference on Design and Concurrent Engineering 2017 & Manufacturing Systems Conference (iDECON/MS2017), No.25, 1-4, Osaka, Japan, Sep. 2017.
8.	Imamura Masaki, Marui Ryo, Sakai Takayuki, Akira Mizobuchi and Hamada Hiroyuki : Process analysis during edge preparation for steel plate between expert and non-expert, Proceedings of the AHFE 2017 International Conference on Human Aspects of Advanced Manufacturing, Vol.606, 435-442, Jul. 2017. (Link to Publication Site) ● Publication site (DOI): 10.1007/978-3-319-60474-9_41 (Link to Search Site for Scientific Articles) ● Summary page in Scopus @ Elsevier: 2-s2.0-85028962067 (DOI: 10.1007/978-3-319-60474-9_41, Elsevier: Scopus)
9.	Kota Watanabe, Akira Mizobuchi and Tohru Ishida : Improvement of Chip Discharge in Drilling of Glass Plate Using Electroplated Diamond Tool with Eccentric Arm, Proceedings of Annual Conference on Engineering and Applied Science (2016 ACEAT), No.ACEAT-1017, 133-134, Kyoto, Nov. 2016.
10.	Kota Honda, Akira Mizobuchi and Tohru Ishida : Investigation of Grinding Fluid for Prevention of Chip Adhesion in Miniature Drilling of Glass Plate Using Electroplated Diamond Tool, Proceedings of 2nd International Conference on Machining, Materials and Mechanical Technologies (IC3MT2016), No.100, 1-4, Matsue, Oct. 2016.
11.	Aziz Sanusi Abdul Mohd, Redzuwan Ikram Bahrin, Zaimi Muhammad, Izamshah Raja, Kasim Shahir Mohd, Ali Amran Md Mohd, Akira Mizobuchi and Tohru Ishida : Cutting Performance of Electroless Ternary Ni-W-P Coated Cutting Tools, Proceedings of International Conference on Design and Concurrent Engineering (iDECON2016), No.102, 1-4, Langkawi, Malaysia, Sep. 2016.
12.	Yuki Kagawa, Akira Mizobuchi and Tohru Ishida : Miniature Drilling of Chemically Strengthened Glass Plate Using Electroplated Diamond Tool, Proc. of 8th International Conference on Leading Edge Manufacturing in 21st Century (LEM21), No.E39 (0805), 1-3, Oct. 2015.
13.	Tohru Ishida, Naohiro Uchida, Jotaro Eto, Akira Mizobuchi and Yoshimi Takeuchi : Arc-Shaped Hole Fabrication inside a Hole by Means of Electrical Discharge Machining, Proc. of 8th Int. Conf. on Leading Edge Manufacturing in 21st Century (LEM21), No.C26 (1108), 1-4, Kyoto, Japan, Oct. 2015.
14.	Kazuki Ueda and Akira Mizobuchi : Study on High-Aspect-Ratio Drilling of Quartz Glass Plate Using Electroplated Diamond Tool, The 3rd International Scientific Conference on Engineering and Applied Sciences, 417-423, Jul. 2015. (Summary) The purpose of this study is high-aspect-ratio drilling of the quartz glass plate using an electroplated diamond tool with long tool life, that produces high hole quality with high processing efficiency. High-aspect-ratio drilling of quartz glass, a hard and brittle material, is extremely difficult. The main problem of high-aspect-ratio drilling is the chip adhesion to the tool. In order to clear this problem, we have developed an electroplated diamond tool having chip pockets. In this study, we used the developed tool to drill quartz glass. Holes were drilled through 6.15 mm thick quartz glass plate using an electroplated diamond tool of 0.5 mm in the diameter. Processing conditions were set at a spindle revolution of 30,000 min-1 and a feed rate of 1 mm/min. As a result, 5 high quality and high-aspect-ratio holes on the quartz glass plate were drilled using the newly developed tool with high processing efficiency. Maximum chipping sizes at the inlet and outlet of holes were less than 0.05 mm, and the drilling time was about 380 sec per a hole. In addition, chip did not adhere to the developed tool at all. However, the short tool life still need to be improved.
15.	Tohru Ishida, Yuichi Okahara, Masahiko Kita, Akira Mizobuchi, Keiichi Nakamoto and Yoshimi Takeuchi : Fundamental Study on Hole Fabrication inside a Hole by Means of Electrical Discharge Machining, Proc. of 7th Int. Conf. on Leading Edge Manufacturing in 21st Century (LEM21), 373-376, Matsushima, Japan, Nov. 2013.
16.	Akira Mizobuchi, Kensuke Uemoto, 石田徹 and Izumi Tada : Crack-Free Through-Hole Drilling of Glass Plate Using Electroplated Diamond Tool, Proceedings of the 15th International Machine Tool Engineers' Conference, 58-59, Nov. 2012.
17.	Akira Mizobuchi, Yuki Ouchi, Koji Hashimoto, Junichi Hino, Hiromu Iwata, Shinnosuke Bando and Tohru Ishida : Behavior of Cutting Force of Tipped-Saw Treated by Tensioning Method in Sawing of Steel, Proceedings of 10th International Conference on Progress of Machining Technology (ICPMT2012), 97-100, Sep. 2012.
18.	Akira Mizobuchi, Kensuke Uemoto, Tohru Ishida and Hitoshi Ogawa : Effect of Tool Geometry of Electroplated Diamond Tool for Chip Treatment in Through-Hole Drilling of Glass Plate, Proceedings of 10th International Conference on Progress of Machining Technology (ICPMT2012), 57-60, Sep. 2012.
19.	Akira Mizobuchi and Ogawa Hitoshi : Through-hole Drilling of Soda-lime Glass Plate Using Electroplated Diamond Tool, Proceedings of the Twenty-sixth Annual ASPE Meeting, Denver, Nov. 2011.
20.	Akira Mizobuchi and Ogawa Hitoshi : Through-Hole Drilling of Glass Plate Using Electroplated Diamond Tool, 2011 First International Conference on Mechanical Engineering, 384-388, Phuket, Apr. 2011.
21.	Hitoshi Takagi, Akira Mizobuchi, Koji Kusano and Hiroshi Mori : Fabrication and evaluation of all bamboo composites, Proceedings of the 19th International Conference on Processing and Fabrication of Advanced Materials, 1052-1059, Auckland, Jan. 2011.
22.	Akira Mizobuchi, Masahiro Masuda and Higaino Tasuku : Influence of Tapping Conditions and Tool Geometries on Tool Life in Tapping of Inconel 625®, 9th International Conference on Progress of Machining Technology, 33-36, Kunming, Apr. 2009. (Summary) Inconel 625® contained Ni 61%, Cr 21.5%, Mo 9% and so on is one of the nickel base super heat resistant alloys and is used for parts in food machine. The nickel base alloys are generally difficult-to-cut materials because of high thermal resistance, high work hardening, high chemical activity and low thermal conductivity. In tapping, furthermore, the tool failure such as chippings, cracks and tool fractures has been frequently observed owing to low rigidity of tool. This paper deals with the influence of surface treatment, tool geometry etc. on the cutting phenomena such as the tool failure, the cutting force and so on when tapping Inconel 625® using the high speed steel tool. The damage of oxidizing tool is slower than that of nitriding tool. The large thrust force in backward tapping causes rapid tool fractures. The smaller helix angle leads to the lower thrust force in backward tapping.
23.	Masahiro Masuda, Akira Mizobuchi and 小川仁 : ダイヤモンド電着工具によるガラス基板への通し穴加工, Proceedings of 13th International Machine Tool Engineers' Conference, 28-29, Tokyo, Oct. 2008.
24.	Akira Mizobuchi, Hitoshi Takagi, and Junichi Hino : Drilling machinability of resin-less "green" composites reinforced by bamboo fiber, High Performance Structures and Materials IV, 185-194, Carvoeiro, May 2008. (Summary) この論文では，穴あけ加工時における竹繊維グリーンコンポジットの被削性について述べる．グリーンコンポジット，竹および杉を鉄工用ドリル，木工用ドリルを使って穴あけ加工し，スラスト力，比切削抵抗，加工穴の性状，切りくず形状および工具摩耗によって被削性を検討した．レジンレス竹繊維強化グリーンコンポジットのスラスト力は，他の被削材に比べて大きく，切りくずは非常に長かった．鉄工用ドリルを用いて，切削速度15m/min，送り0.03mm/revで穴あけ加工を行うとレジンレス竹繊維強化グリーンコンポジットの加工穴に発生するバリやコバ崩れは小さかった．穴周りの欠陥を少なくするためには，グリーンコンポジットの単繊維を鋭い切れ刃で切削しなければならず，工具としてダイヤモンド電着工具の使用が考えられる．
25.	Hitoshi Takagi, Akira Mizobuchi, Koji Kusano and Yoshihito Okitsu : Flexural properties of all bamboo "green'' composites, High Performance Structures and Materials IV, 167-173, Carvoeiro, May 2008. (Summary) 本国際会議論文は，竹の強度改善を目的としてマダケに対して種々の条件でホットプレス成形を行った結果をまとめたものである．評価すべき強度特性として，3点曲げ強度，曲げ弾性率，圧縮強度，アイゾット衝撃強度に注目した．その結果，曲げ強度，圧縮強度，衝撃強度はホットプレス成形温度の上昇につれて向上し，160℃でピーク値を示すことが分かった．さらに内部組織の調査から，維管束部と柔細胞部の圧縮変形により試料の高密度化が行われ，この密度向上に対応して各種強度特性が向上することを明らかにした．
26.	Hitoshi Ogawa, Masahiro Masuda and Akira Oyama : Cavitation Effect of Cutting Fluid in Micro Drilling, Progress of Machining Technology (8th ICPMT), 261-264, Matsue, Nov. 2006. (Keyword) ultrasonic vibration / micro drilling / cavitation / SUS304 / tool life
27.	Akira Oyama, Masahiro Masuda, Kenichi Sasaki, Hitoshi Ogawa, Shinichi Handa and Kiyotaka Takechi : Investigation of Tool Geometry and Machining Conditions for Fracture Size Minimization in Miniature Drilling of Alumina Ceramic with Electroplated Diamond Tool, Progress of Machining Technology (8th ICPMT), 121-124, Matsue, Nov. 2006. (Keyword) electroplated diamond tool / alumina ceramic / through hole drilling / fracture size / tool geometry / grain size
28.	Akira Oyama, Masahiro Masuda, Masatoshi Arimura, Masahiro Morikawa, Teruo Nogami and Hitoshi Ogawa : Cermet Tool Failure and Its Control in Machining Line of Bearing Production, Progress of Machining Technology (7th ICPMT), Suzhou, Dec. 2004. (Summary) 生産現場で使用されているサーメット工具の損傷状態を観察するとともに，工具寿命延長の方法について提案している．加工サイクルによる熱き裂が主たる損傷形態であり，それを抑制する方法は工具の表面粗さの改善と送りの減少により，現在の工具コストを2割程度削減できるとしている．
29.	Akira Oyama, Masahiro Masuda, Hiromu Iwata and Koji Hashimoto : Cutting Performance of Tipped-Saws Produced by Various Tensioning Methods When Sawing Steel S45C, Progress of Machining Technology (6th ICPMT), 509-514, Xi'an, Sep. 2002. (Summary) 従来からの圧延法，冷やしばめ法および内圧法で親板に腰入れを行い，これらの切断性能を比較している．どの方法においても鉄鋼材料ではびびり振動が発生し，切れ刃に欠損が生じた．
30.	Akira Mizobuchi, Masahiro Masuda, Teruo Nogami and Hiroshi Kikuyama : Cutting Behavior and Improvement of Surface Roughness in Ultra-precision Cutting, Proceeding of the International Conference on Progress of Machining Technology, 233-238, Beijing, Sep. 2000. (Summary) 送り10μm以下の領域では加工条件で表面粗さを改善できないばかりか，送り分力の大きくなる現象が見られる原因について，単結晶ダイヤモンド工具の切れ刃の丸みが影響することを述べている．そして，逃げ角を大きくするように工具を傾斜することで粗さなどを改善できることを実証している．
31.	Osamu Horiuchi, Asatugu Sato, Humihiro Takemura, Akira Mizobuchi and Tsukasa Matsui : Study on High Accuracy Positioning of Wheel Head of Cylindrical Grinder, --- Comparison of Controlling Methods ---, Proceeding of the International Conference on Precision Engineering, 79-84, Taipei, Sep. 1997.

Proceeding of Domestic Conference:

1.	牧本宜大, HIRAI Shuma, 岡崎一郎, Akira Mizobuchi and 小川仁 : 切削加工での高音域による異常検知手法の改善, 令和6年電気学会全国大会講演論文集, 101, Mar. 2024. (Summary) 大量生産を基本とする製造業は，高い生産効率が必要である．我々の研究グループでは，これまでに10~20kHzの周波数帯の音信号(以下，高音域)を使用し，スマホを活用した切削加工用異音検知アプリを提案している． (1)高音域は雨音等の環境騒音を受けにくい特徴を有するため耐ノイズ性が向上する．本研究では，高音域のノイズ音(他の工作機械の稼働音)がある環境下でも使用できるように改善をはかるため，加速度センサーをパラメータに追加し，有効性検証を実施した．
2.	Shuma Hirai, 牧本宜大, Akira Mizobuchi, 小川仁 and Tohru Ishida : 高音域による切削工具の摩耗量推定手法の提案, 2023年度精密工学会秋季大会学術講演会講演論文集, 69-70, Sep. 2023. (Summary) 本報告の目的は，簡単に取得可能で信号処理が容易な音信号を用いて旋盤の工具摩耗量を迅速に検知する手法の開発である．音信号を使用する場合，対象装置と環境騒音の分離が課題であることから，その分離を不要とするため，様々な環境騒音の影響を受けにくい 10k ~ 20kHz の周波数帯(以下，高音域)での工具摩耗量の推定手法を検討した．音信号をスマホでフーリエ変換し，正常なチップとの音信号のレベル差より摩耗量の推定可否を検証した．
3.	Koichiroh Gomi, Akira Mizobuchi, Tohru Ishida and 川添洋 : ポリビニルアルコールを結合剤とする3R砥石の作製方法の検討, 2023年度砥粒加工学会学術講演会講演論文集, 334-335, Aug. 2023. (Summary) 本研究室では，使用済み砥石の削減(Reduce)，再利用(Reuse)，有効利用(Recycle)を目的とした3R砥石の作製を試みた．結合剤は安価で環境負荷の低いポリビニルアルコール(PVA)水溶液を用いた．PVA水溶液は可溶であり，砥石の損耗は著しく大きい．この水溶液の耐水性をPVAの物性値の変更や架橋剤の添加といった簡易的な方法で改善し，湿式研磨に適する砥石の作製方法を検討した．
4.	Akira Mizobuchi, Tohru Ishida and Tappei Oyamada : ガラス板への穴加工における電着工具形状による加工液の流れと切りくず排出状況, 2022年度日本設計工学会四国支部研究発表講演会講演論文集, A04, Mar. 2023.
5.	牧本宜大, Shuma Hirai, Akira Mizobuchi and 小川仁 : 工作機械使用環境下での高音域による異常検知手法の提案, 2023年電子情報通信学会総合大会講演論文集, 29, Mar. 2023.
6.	Tohru Ishida, Eiji Kameda, JUNMING ZHUANG and Akira Mizobuchi : 穴内面穴放電加工法の開発 -深穴に対する仕上げ加工-, 電気加工学会全国大会(2022)講演論文集, 11-12, Nov. 2022.
7.	Akira Mizobuchi, Tohru Ishida and 田島淳吉 : ステンレス大型鋼板の湿式研磨加工技術の開発, 第19回国際工作機械技術者会議論文集(ポスターセッション論文抜粋版),日本工作機械工業会&東京ビックサイト, 56-57, Nov. 2022.
8.	Tohru Ishida, JUNMING ZHUANG, Yusuke Takamori and Akira Mizobuchi : 弾性体支持電極を用いた放電加工(通常電極との比較を可能とする装置の開発), 日本機械学会第14回生産加工・工作機械部門講演会予稿集, No.C07, 267-270, Oct. 2022.
9.	Tohru Ishida, Katsuya Fujiwara, Junji Matsushita, 北正彦, Akira Mizobuchi and 竹内芳美 : 曲がり穴放電加工用マイクロロボットの開発 -自律的放電加工機能を有した方向制御装置による曲がり穴加⼯の実現-, 日本機械学会2022年度年次大会講演論文集, No.J131-08, 1-4, Sep. 2022.
10.	Akira Mizobuchi, Tohru Ishida and Tappei Oyamada : ガラス板への小径深穴加工におけるストレート面付き工具の切りくず付着の改善方法, 2021年度日本設計工学会四国支部研究発表講演会講演論文集, 29-30, Mar. 2022. (Summary) 本報告では，工具への切りくず付着抑制のため，加工液の流動を活発にする工具形状を考案した.また，考案した工具を用いた加工について流体解析を行い，加工液の流動を調査した. 最後に，考案した工具でアスペクト比10の小径深穴加工を行い，切りくず付着の程度を調査した.
11.	Akira Mizobuchi, Tohru Ishida, 田島淳吉 and Hiyohgo Miyauchi : 有機チタン化合物を添加させた再生砥石の作製条件の検討, 2021年度日本設計工学会四国支部研究発表講演会講演論文集, 27-28, Mar. 2022. (Summary) 本研究では，統計学的考えを採用しているタグチメソッドを利用して損壊量を抑えて，湿式研磨ができる砥石の開発を目的とする.
12.	Akira Mizobuchi, Tohru Ishida, 田島淳吉 and Keita Horimoto : 四ホウ酸ナトリウムの添加による再生砥石の耐水性の改善, 2021年度日本設計工学会四国支部研究発表講演会講演論文集, 25-26, Mar. 2022. (Summary) 本研究では，再生砥石の耐水性を改善するため，四ホウ酸ナトリウム(ホウ砂)を添加した再生砥石を作製し，この砥石の耐水性および研磨性能を調査した.
13.	Tohru Ishida, Yusuke Takamori, JUNMING ZHUANG and Akira Mizobuchi : 穴内面穴放電加工における電極挙動の可視化, 電気加工学会全国大会(2021)講演論文集, 75-76, Nov. 2021.
14.	Tohru Ishida, Fuki Koyama, Yusuke Takamori and Akira Mizobuchi : 穴内面穴放電加工法の開発 -仕上げ加工の実現-, 日本機械学会2021年度年次大会講演論文集, No.J133-14, 1-3, Sep. 2021.
15.	Tohru Ishida, Katsuya Fujiwara, 北正彦, Akira Mizobuchi and 竹内芳美 : 曲がり穴放電加工用マイクロロボットの開発 -自律的放電加工機能を有した油圧駆動型管内自走装置による加工の実現-, 日本機械学会2021年度年次大会講演論文集, No.J133-13, 1-3, Sep. 2021.
16.	Hiyohgo Miyauchi, Akira Mizobuchi, 田島淳吉 and Tohru Ishida : ステンレス鋼板の湿式研磨加工における廃砥石を使用した再生砥石の試作と研磨性能, 2021年度砥粒加工学会学術講演会講演論文集, 228-229, Sep. 2021. (Summary) 本報では，再生砥石の耐水性を改善するため，PVA 水溶液に有機チタン化合物を添加した.PVA 水溶液と有機チタン化合物の架橋反応を利用した砥石の試作およびこの砥石の研磨性能を検討した.
17.	Tappei Oyamada, Akira Mizobuchi and Tohru Ishida : ガラス板への小径深穴加工における改良型ストレート面付き工具の切りくず排出性, 2021年度砥粒加工学会学術講演会講演論文集, 47-48, Sep. 2021. (Summary) 本報告では，加工液の流動を改善する工具形状を検討し，この工具での切りくず排出を調査した. また，CFD シミュレーションによる流体解析を行い，加工液の流速分布から，工具形状と加工液の流動を調査した.
18.	Keita Horimoto, Akira Mizobuchi, 田島淳吉 and Tohru Ishida : 廃砥石を再利用したビトリファイドボンド砥石の作製, 2021年度砥粒加工学会学術講演会講演論文集, 41-42, Sep. 2021. (Summary) 本報では，再生砥石の耐水性を改善するため，PVA 水溶液にホウ砂を添加した再生砥石の作製を試み，この砥石の研磨性能を調査した.
19.	Tohru Ishida, Yuya Sato, Kohji Yamada, Akira Mizobuchi and 竹内芳美 : 曲がり穴放電加工用マイクロロボットの開発(加工液を作動油として用いた油圧駆動型管内自走ユニットの実現), 日本機械学会2020年度年次大会講演論文集, No.S13304, 1, Sep. 2020.
20.	Satoshi Yamamoto, Akira Mizobuchi and Tohru Ishida : 電気泳動現象を用いた補綴歯科用研磨バー作製時の諸条件の影響, 日本設計工学会四国支部令和元年度四国支部研究発表講演会特別講演会・研究発表講演会概要集, 36-37, Mar. 2020.
21.	Keita Horimoto, Akira Mizobuchi and Tohru Ishida : 磁石による磁気吸着機能を用いたドリルに巻付く切粉の除去方法, 日本設計工学会四国支部令和元年度四国支部研究発表講演会特別講演会・研究発表講演会概要集, 42-43, Mar. 2020.
22.	Tohru Ishida, Shuya Tsukamoto, Yuhei Tsunekuni, Akira Mizobuchi and 竹内芳美 : 穴内面穴放電加工法の開発 -異形断面穴の加工による形状誤差の検証-, 電気加工学会全国大会(2019)講演論文集, 51-52, Nov. 2019.
23.	Tohru Ishida, Yusuke Kaide, Akira Mizobuchi and 竹内芳美 : 曲がり穴放電加工法の開発(加工の実現を考慮した装置動作指令の自動生成), 日本機械学会第13回生産加工・工作機械部門講演会講演論文集, No.C20, 276, Oct. 2019.
24.	Akira Mizobuchi, Tohru Ishida and Taichi Takata : 切りくず付着低減研磨バーの試作, 日本設計工学会四国支部平成30年度四国支部研究発表講演会特別講演会・研究発表講演会概要集, 3-4, Mar. 2019.
25.	Tohru Ishida, Shikitaro Ogawa, Akira Mizobuchi and 竹内芳美 : 穴内面穴放電加工法の開発 -ツイン板ばね方式による穴内面穴の真直化-, 電気加工学会全国大会(2018)講演論文集, 53-54, Nov. 2018.
26.	Tohru Ishida, Yuhei Tsunekuni, Shikitaro Ogawa, Akira Mizobuchi and 竹内芳美 : 放電加工による穴内面への穴創成およびその大径化と真直化, 第18回国際工作機械技術者会議論文集(ポスターセッション論文抜粋版),日本工作機械工業会&東京ビックサイト, 66-67, Nov. 2018.
27.	Ryuta Kubota, Tohru Ishida, Akira Mizobuchi and 竹内芳美 : 穴内面穴放電加工法の開発 -加工穴の小径化の試み-, 日本機械学会第12回生産加工・工作機械部門講演会講演論文集, No.B08, 1-2, Oct. 2018.
28.	Yuhei Tsunekuni, Tohru Ishida, Shikitaro Ogawa, Akira Mizobuchi and 竹内芳美 : 穴内面穴放電加工法の開発(板ばねの薄片化による穴内面穴の真直化), 日本機械学会2018年度年次大会講演論文集, No.S1330001, 1-3, Sep. 2018.
29.	Ryuji Inasaka, Akira Mizobuchi and Tohru Ishida : 電気泳動現象を用いた補綴歯科用研磨バーの開発, 日本機械学会中国四国支部第56期講演会講演論文集, No.1410, 1-2, Mar. 2018.
30.	Kota Honda, Akira Mizobuchi and Tohru Ishida : 酸化チタン水溶液の光励起親水化作用を利用した電着工具への切りくず付着抑制, 日本機械学会中国四国支部第56期講演会講演論文集, No.1409, 1-2, Mar. 2018.
31.	Ryotaroh Tanimoto, Akira Mizobuchi, Tohru Ishida and 今村雅紀 : 極厚鋼板のガス切断時のノロの抑制, 2017年度精密工学会中国四国支部鳥取地方学術講演会講演論文集, 25-26, Nov. 2017.
32.	Tohru Ishida, Yusuke Kaide, Akira Mizobuchi and 竹内芳美 : 教示再生法を適用した曲がり穴放電加工における教示作業の自動化(電極運動軌跡の3次元化), 日本設計工学会2017年度秋季大会研究発表講演会講演論文集, 129-130, Oct. 2017.
33.	Tohru Ishida, Shohei Tahara, Shikitaro Ogawa, Akira Mizobuchi and 竹内芳美 : 穴内面穴放電加工法の開発(加工穴内径の拡大), 日本機械学会2017年度年次大会講演論文集, No.S1340101, 1-4, Sep. 2017.
34.	今村雅紀, 圓井良, 坂井貴行, Akira Mizobuchi and 濱田泰以 : 熟練者による開先加工のプロセス解析, 日本機械学会2017年度年次大会講演論文集, No.S0450104, 1-4, Sep. 2017.
35.	Kazuya Yorioka, Tohru Ishida, Tsubasa Okazaki, Akira Mizobuchi, 浅川直紀 and 竹内芳美 : 多軸制御放電加工による断面変化穴の創成を実現するための2+5軸制御荒加工用メインプロセッサの開発, 2017年度精密工学会春季大会学術講演会講演論文集, 401-402, Mar. 2017.
36.	Hironori Hata, Tohru Ishida, Kento Kawasaki, Yuya Sato, 北正彦, Akira Mizobuchi and 竹内芳美 : 昆虫型マイクロロボットによる曲がり穴放電加工システムの開発 -放電加工機能を有したマイクロロボットによる穴創成の実現-, 日本機械学会中国四国支部第55期総会・講演会講演論文集, No.909, 1-2, Mar. 2017.
37.	Akira Mizobuchi, Kazuki Ueda, Kohta Watanabe, Kota Honda and Tohru Ishida : キャビテーション援用によるストレート面付き電着工具の貫通穴加工, 第17回国際工作機械技術者会議論文集(ポスターセッション論文抜粋版), 86-87, Nov. 2016.
38.	今村雅紀, 圓井良, 杉本卓也 and Akira Mizobuchi : 伝統的溶断加工におけるノロ削減技術, 第24回機械材料・材料加工技術講演会講演論文集, Nov. 2016.
39.	今村雅紀, Akira Mizobuchi, 圓井良, 杉本卓也 and 濱田泰以 : 厚物鋼板のガス溶断時に発生するノロの抑制に関する熟練技術, 日本材料学会第2回材料WEEK講演論文集, Oct. 2016.
40.	Tsubasa Okazaki, Kazuya Yorioka, Tohru Ishida, Akira Mizobuchi, 浅川直紀 and 竹内芳美 : 多軸制御放電加工による断面変化穴の創成を実現するための2重C-Spaceを用いた干渉回避法の開発, 2016年度精密工学会秋季大会学術講演会講演論文集, 461-462, Sep. 2016.
41.	Tsubasa Okazaki, Kazuya Yorioka, Tohru Ishida, Akira Mizobuchi, 浅川直紀 and 竹内芳美 : 多軸制御放電加工による断面変化穴の創成を実現するための2重C-Spaceを用いた干渉回避法の提案, 日本設計工学会四国支部平成27年度研究発表講演会講演論文集, 37-38, Mar. 2016.
42.	Yusuke Kaide, Chiyongan Kimu, Tohru Ishida, Akira Mizobuchi and 竹内芳美 : 教示再生法を適用した曲がり穴放電加工における教示作業の自動化, 日本設計工学会四国支部平成27年度研究発表講演会講演論文集, 35-36, Mar. 2016.
43.	Yuki Kagawa, Akira Mizobuchi and Tohru Ishida : 化学強化ガラスへの高品位穴加工技術に関する研究, 日本設計工学会四国支部平成27年度研究発表講演会講演論文集, 21-22, Mar. 2016.
44.	Kazuki Ueda, Akira Mizobuchi and Tohru Ishida : 石英ガラス板への高アスペクト比穴加工を目的とした電着工具の開発, 日本設計工学会四国支部平成27年度研究発表講演会講演論文集, 19-20, Mar. 2016.
45.	Tohru Ishida, Johtaroh Etoh, Akira Mizobuchi and 竹内芳美 : 穴内面穴放電加工法の開発 -加工可能な穴長さの限界-, 電気加工学会全国大会(2015)講演論文集, 85-86, Dec. 2015.
46.	Tohru Ishida, Takahiko Yamagawa, Akira Mizobuchi and 竹内芳美 : 穴内面穴放電加工法の開発 -保持器による加工穴長さの延長-, 日本機械学会第10回生産加工・工作機械部門講演会講演論文集, 235-236, Nov. 2014.
47.	Akira Mizobuchi, Kensuke Uemoto and Tohru Ishida : 小径ダイヤモンド電着工具によるガラス板への小径貫通穴加工の高品位化, 日本機械学会第10回生産加工・工作機械部門講演会講演論文集, 153-154, Nov. 2014.
48.	Tohru Ishida, Takahiko Yamagawa, Atsuya Yamada, Akira Mizobuchi and 竹内芳美 : 放電加工による穴内面への穴創成, 第16回国際工作機械技術者会議論文集(ポスターセッション論文抜粋版),日本工作機械工業会&東京ビックサイト, 62-63, Nov. 2014.
49.	Tohru Ishida, Atsuya Yamada, Akira Mizobuchi and 竹内芳美 : 穴内面穴放電加工法の開発 -装置の基本構成と適用結果-, 2014年度精密工学会秋季大会学術講演会講演論文集, 259-260, Sep. 2014.
50.	Akira Mizobuchi, Yasuhiro Iwamoto and Tohru Ishida : 小径ダイヤモンド電着工具によるガラス板への高品位斜め穴加工, 2014年度砥粒加工学会学術講演会講演論文集, 92-93, Sep. 2014.
51.	Akira Mizobuchi : 硬脆材料への高品位小径貫通穴加工を目的とした電着工具の開発, Feb. 2014.
52.	Akira Mizobuchi : 硬脆材料への高品位小径貫通穴加工を目的とした電着工具の開発, Jan. 2014.
53.	Akira Mizobuchi : 硬脆材料への高品位小径貫通穴加工用ダイヤモンド電着工具の開発, Nov. 2013.
54.	Akira Mizobuchi : 硬脆材料用の微細穴あけ加工用工具の開発, 第13回エンジニアリングフェスティバル,徳島, Sep. 2013.
55.	Akira Mizobuchi : ガラス板への貫通穴あけ加工用ダイヤモンド電着工具の開発と特長, 精密工学会難削材加工専門委員会, Sep. 2013.
56.	Akira Mizobuchi, Yuki Takahashi, Kensuke Uemoto and Tohru Ishida : ガラスへの小径貫通穴あけ加工用ダイヤモンド電着工具の開発, 2013年度砥粒加工学会学術講演会講演論文集, 217-218, Aug. 2013.
57.	Akira Mizobuchi, Kensuke Uemoto, Izumi Tada and Tohru Ishida : ガラス板へのクラックフリー小径貫通穴加工, 第15回国際工作機械技術者会議論文集(ポスターセッション論文抜粋版),日本工作機械工業会&東京ビックサイト, 58-59, Nov. 2012.
58.	Kensuke Uemoto, Akira Mizobuchi, 石田徹 and 小川仁 : ダイヤモンド電着工具によるガラス基板への通り穴加工(第11報), 精密工学会学生会員卒業研究発表講演会論文集, Mar. 2012.
59.	Yuki Ohuchi, Akira Mizobuchi, 橋本浩二, Junichi Hino, 岩田弘, 坂東慎之介 and 石田徹 : チップソーによる鉄鋼材料の切断加工に関する研究(第12報), 精密工学会学生会員卒業研究発表講演会論文集, Mar. 2012.
60.	坂東慎之介, Junichi Hino, 岩田弘, 赤木良, Akira Mizobuchi and 橋本浩二 : 円板のモード形状変化がひずみエネルギーに及ぼす影響に関する解析的研究, Dynamics and Design Conference 2011 講演概要集, Sep. 2011.
61.	Motonobu Inoue, Akira Mizobuchi, Hiromu Iwata, 坂東慎之介, Koji Hashimoto and Takuo Nagamachi : チップソーによる鉄鋼材料の切断加工に関する研究(第11 報), 2011年度精密工学会春季大会学術講演会講演論文集, 549-550, Mar. 2011.
62.	Tatsuo Sasaoka, Akira Mizobuchi, Junichi Hino, Motomichi Sonobe and 小川仁 : ダイヤモンド電着工具によるガラス基板への通り穴加工(第10 報), 2011年度精密工学会春季大会学術講演会講演論文集, 175-176, Mar. 2011.
63.	Izumi Tada, Akira Mizobuchi and 小川仁 : ダイヤモンド電着工具を用いたガラス基板への通り穴加工(第9 報), 2011年度精密工学会春季大会学術講演会講演論文集, 177-178, Mar. 2011.
64.	Izumi Tada, Akira Mizobuchi and 小川仁 : ダイヤモンド電着工具によるガラス基板への通り穴加工(第8報), 2010年度精密工学会中国四国支部徳島地方学術講演会講演論文集, 41-42, Nov. 2010.
65.	Tatsuo Sasaoka, Akira Mizobuchi, Junichi Hino, Motomichi Sonobe and 小川仁 : ダイヤモンド電着工具によるガラス基板への通り穴加工(第7報), 2010年度精密工学会中国四国支部徳島地方学術講演会講演論文集, 39-40, Nov. 2010.
66.	Ryo Morio, Akira Mizobuchi and Hitoshi Takagi : 竹繊維強化型レジンレスグリーンコンポジットへの加工, 2010年度精密工学会中国四国支部徳島地方学術講演会講演論文集, 35-36, Nov. 2010.
67.	Motonobu Inoue, Akira Mizobuchi, 岩田弘, 坂東慎之介, 橋本浩二 and Takuo Nagamachi : チップソーによる鉄鋼材料の切断加工に関する研究(第10報), 2010年度精密工学会中国四国支部徳島地方学術講演会講演論文集, 1-2, Nov. 2010.
68.	赤木良, 岩田弘, 坂東慎之介, Akira Mizobuchi and 橋本浩二 : 丸のこの振動モードに関する研究, 日本設計工学会平成22年度秋季研究発表講演会講演論文集, 191-194, Oct. 2010.
69.	Tatsuo Sasaoka, Akira Mizobuchi, Junichi Hino, Motomichi Sonobe and 小川仁 : ダイヤモンド電着工具によるガラス基板への通り穴加工(第6報), 2010年度精密工学会秋季大会学術講演会講演論文集, 321-322, Sep. 2010.
70.	Akira Mizobuchi, 小川仁 and Tatsuo Sasaoka : ダイヤモンド電着工具によるガラス基板へのヘリカル加工時の研削抵抗と加工精度, 2010年度砥粒加工学会学術講演会講演論文集, 363-368, Aug. 2010.
71.	小川仁, 浜田晴司, 上山崇 and Akira Mizobuchi : 超音波キャビテーション付与装置を用いたガラスの穴加工, 2010年度精密工学会春季大会学術講演会講演論文集, 189-190, Mar. 2010.
72.	Akira Mizobuchi, 岩田弘, 坂東慎之介 and 橋本浩二 : チップソーによる鉄鋼材料の切断加工に関する研究(第9報)-ポンチングを施したチップソーの切断性能-, 2010年度精密工学会春季大会学術講演会講演論文集, 493-494, Mar. 2010.
73.	橋本竜一, 岩田弘, 坂東慎之介, Akira Mizobuchi and 橋本浩二 : 動吸振器を用いた回転時の丸のこの制振, 日本設計工学会四国支部研究発表講演会論文集, 37-40, Mar. 2010.
74.	赤木良, 岩田弘, 坂東慎之介, Akira Mizobuchi and 橋本浩二 : 腰入れ処理した高速回転円板の振動モード, 日本設計工学会四国支部研究発表講演会論文集, 35-36, Mar. 2010.
75.	赤木良, 岩田弘, 坂東慎之介, Akira Mizobuchi and 橋本浩二 : 腰入れ処理した丸のこの振動モード, 第40回学生員卒業研究発表講演会論文集, 141, Mar. 2010.
76.	Akira Mizobuchi : ステンレス鋼のトレパン加工に関する研究, 2009年度精密工学会中国四国支部山口地方学術講演会講演論文集, 35-36, Nov. 2009.
77.	Hitoshi Takagi, Koji Kusano, Akira Mizobuchi and Yoshihiro Takata : Strength properties of hot-pressed bamboo, Proceedings of JSME Nagasaki Congress, 17-18, Oct. 2009.
78.	Tatsuo Sasaoka, Akira Mizobuchi and 小川仁 : ダイヤモンド電着工具によるガラス基板への通り穴加工(第5報), 2009年度精密工学会秋季大会学術講演会講演論文集, 273-274, Aug. 2009. (Summary) 本研究では，電着工具をヘリカル運動させることにより，板厚2.83mmのガラス基板に直径3mmの通り穴を高精度・高能率であける方法を検討している．ステップ加工に比べ，加工能率は約5倍以上になるが，加工精度は粒度によってばらつく．加工精度を向上させるために，粒度が穴加工面に及ぼす影響について調べている．
79.	Akira Mizobuchi, 小川仁 and Tatsuo Sasaoka : ダイヤモンド電着工具によるガラス基板への通り穴加工(第4報), 2009年度精密工学会秋季大会学術講演会講演論文集, 271-272, Aug. 2009. (Summary) 本研究では，板厚2.83mmのガラス基板に直径1mmの通り穴をコバ欠けの小さな状態であける方法を検討している．ポケット付電着工具を用いた場合，一方向からステップ加工を行うと出口のコバ欠け幅を0.1mm以下にできる．しかし，入口の欠け幅は出口の欠け幅より大きく，ばらつきも大きくなる．チップポケットとコバ欠けの関係について検討している．
80.	Teruaki Ito and Akira Mizobuchi : 発想，設計，実装および実践を統合させた創成教育の試み(その2), 平成21年度工学·工業教育研究講演会講演論文集, 228-229, Aug. 2009. (Summary) 学生の創造力を高めるために，サッカーロボットを課題に取り入れた．サッカーロボットによるチーム対抗ゲームでの優勝を目指して，各チームが発想，設計，実装そして実践を通じた演習授業について紹介した．分かりやすく，明確な目標を与えることで，学生の自主的なチーム活動のための方向付けを与えられたこと，またお手本となるロボットとプログラムを与えることでサッカーロボットという高度な問題に取り組ませ，サッカーゲームを行うことには成功した．
81.	Akira Mizobuchi and Teruaki Ito : 発想，設計，実装および実践を統合させた創成教育の試み(その1), 平成21年度工学・工業教育研究講演会講演論文集, 226-227, Aug. 2009. (Summary) 演習授業において取り入れたサッカーロボットの機構の考案，プログラムの実装，ゲーム型の課題を与えてチームワークの育成を目指した教育内容について紹介する．そして，発想，設計，実装および実践を統合させた創成教育の試みについて述べる．
82.	Akira Mizobuchi, Masahiro Masuda, Hiroaki Miwa and 小川仁 : ダイヤモンド電着工具によるガラス基板への通り穴加工(第3報), 2009年度精密工学会春季大会学術講演会講演論文集, 199-200, Mar. 2009.
83.	Akira Mizobuchi, Hitoshi Takagi and Hitoshi Kotani : レジンレス竹繊維強化グリーンコンポジットへの通り穴加工, JCOM-38講演論文集, 323-325, Mar. 2009.
84.	Takehito Mori, Hitoshi Takagi, Akira Mizobuchi and Koji Kusano : Strength properties of hot-pressed steam-exploded-bamboo, Proceedings of JCOM-38, 318-319, Mar. 2009. (Summary) 本講演論文は，予め爆砕処理した竹をホットプレス成形することによって作製したバイオマス由来複合材料の引張強度と成形条件の関係について調査した結果を取り扱っている．その結果，成形体の引張強さは成形温度に大きく依存し，成形温度140℃付近で強度は最大となること，ならびに試作材は竹繊維をプレスした材料に匹敵する引張強度をもち，更に製作が容易であること，また生竹をプレスした材料よりも2割程引張強度が高くなることを報告している．
85.	坂東慎之介, Hiromu Iwata, Masahiro Masuda, Akira Mizobuchi and Koji Hashimoto : 円板のたわみ剛性に及ぼすポンチング処理の影響, 日本設計工学会四国支部研究発表講演会論文集, Mar. 2009.
86.	赤木良, Hiromu Iwata, 坂東慎之介, Masahiro Masuda, Akira Mizobuchi and Koji Hashimoto : 高速回転円板の面外変位形状と腰入れ効果に関する研究, 日本設計工学会四国支部研究発表講演会論文集, Mar. 2009.
87.	小川仁, 小野永春, Masahiro Masuda and Akira Mizobuchi : 六角ナットねじ加工時のバリ対策, 2008年度精密工学会愛媛地方学術講演会講演論文集, 41-42, Nov. 2008. (Summary) 家電，弱電関連に用いられる六角ナットではバリの発生が問題となる．本研究では，ベントタップによる六角ナットのねじ加工について，工具，加工条件およびスプリングのばね定数の変化によるバリの発生について検討した．回転数やばね定数の変化によってスラスト波形にわずかな違いが確認できるが，ひげバリの発生は見られなかった．スプリング無しの場合には，スラスト力の著しい上昇とともに，バリの発生が確認できた．
88.	Shinya Morimoto, Akira Mizobuchi, Masahiro Masuda and 伊勢谷昭博 : 転がり軸受けの欠陥評価に関する研究, 2008年度精密工学会愛媛地方学術講演会講演論文集, 29-30, Nov. 2008. (Summary) 自動車用転がり軸受けはころ，外輪および内輪で構成され，組み上げられた状態で全数検査が行われる．現在検査工程において欠陥の有無，その構成品の判定を行い，生産工程の再段取りを行っている．本研究では，転がり軸受けの欠陥の有無，その場所，そして現在では難しいとされる欠陥の種類を判別するために，5種類の欠陥評価因子について検討する．
89.	小川仁, Masahiro Masuda and Akira Mizobuchi : キャビテーション援用小径ドリル加工に関する研究, 2008年度精密工学会秋季大会学術講演会講演論文集, 957-958, Sep. 2008. (Summary) 直径10μmの小径ドリルによるステンレス鋼SUS304の穴あけにおいて，工作液に超音波振動を付与することにより生じるキャビテーション現象を応用する手法を提案し，工具寿命，食付き性などを検討した．加工穴内部から生じるキャビテーションにより切りくず排出性が向上し，工具チゼル部や逃げ面での凝着の減少により，突発的に発生する工具折損が抑制され，工具寿命が延びることが確認できた．
90.	Hiroaki Miwa, Akira Mizobuchi, 小川仁 and Masahiro Masuda : ダイヤモンド電着工具によるガラス基板への通し穴加工(第2報), 2008年度精密工学会秋季大会学術講演会講演論文集, 31-32, Sep. 2008. (Summary) 本研究では，板厚2.83mmのガラス基板に直径3mmの通し穴をコバ欠けの小さな状態で能率的に開ける方法を検討している．設計した電着工具をらせん状に送るヘリカル加工を採用した．ステップ送りと比較して，切りくず排出のためのすきまの確保や，一方向の加工が連続してでき，加工時間は1/10となった．また，加工品位の向上のために加工条件やダイヤモンド砥粒の大きさを検討している．
91.	小川仁, Masahiro Masuda and Akira Mizobuchi : Study on Applying Cavitation in Micro Drilling, --- Effect of Applying Cavitation in Through Hole Drilling ---, 2008年度精密工学会春季大会学術講演会論文集, 49-50, Mar. 2008.
92.	Hiromu Iwata, 中川裕一朗, 坂東慎之介, Masahiro Masuda, Akira Mizobuchi and Koji Hashimoto : 面外集中荷重を受ける高速回転円板の変形に関する基礎的研究, 日本設計工学会四国支部平成19年度研究発表講演会講演論文集, 3-4, Mar. 2008.
93.	Akira Mizobuchi, Masahiro Masuda, Atsushi Ota, Hiromu Iwata and Koji Hashimoto : チップソーによる鉄鋼材料の切断加工に関する研究(第8報), 2007年度精密工学会中国四国支部広島地方学術講演会講演論文集, 47-48, Nov. 2007. (Summary) 薄板構造であるチップソーの剛性は小さく，それにより振動が大きくなってしまう．そこで，剛性と切断抵抗の挙動の関連性について考察する．また，ローリング処理に替わる簡単な腰入れ処理方法も検討する．
94.	Akira Mizobuchi, Masahiro Masuda and 小川仁 : ダイヤモンド電着工具によるガラス基板への通し穴加工(第1報), 2007年度精密工学会秋季大会学術講演会講演論文集, 49-50, Sep. 2007. (Summary) 本報告は，チップポケット付ダイヤモンド電着工具を用いて，板厚2.8mmのソーダライム系ガラス基板に直径1mmの通し穴をあけるとき，コバ欠けが小さくなる加工条件を検討している．1mm/min程度の送り速度と#600の粒度を選択すれば，欠け幅を0.1mm以下に抑制できる．しかし，加工回数とともに切りくずが工具表面に付着する結果，欠け幅は大きくなる．
95.	Yuusuke Maegawa, 三木康司, Akira Mizobuchi and Masahiro Masuda : ロボット内蔵サーボプレス機の開発(第1報), 2006年度精密工学会中四国支部高松地方学術講演会講演論文集, 47-48, Nov. 2006.
96.	Takeshi Miura, Akira Mizobuchi, Masahiro Masuda and 日開野輔 : インコネル625のタップ加工, 2006年度精密工学会中四国支部高松地方学術講演会講演論文集, 27-28, Nov. 2006.
97.	小川仁, Akira Mizobuchi and Masahiro Masuda : Micro Drilling of Stainless Steel SUS304 Using Cavitation Effect, 工作機械関連のニューテクノロジーポスター展研究概要集, 84-85, Nov. 2006.
98.	Akira Mizobuchi, Masahiro Masuda and 小川仁 : Through Hole Drilling of Alumina Ceramic with Electroplated Diamond Tool, 工作機械関連のニューテクノロジーポスター展研究概要集, 82-83, Nov. 2006.
99.	小川仁, Masahiro Masuda and Akira Oyama : エアタービンスピンドルとキャビテーション援用による小径ドリル加工に関する研究, 2006年度精密工学会秋季大会学術講演会講演論文集, 411-412, Sep. 2006. (Summary) 本研究は，小径穴あけ加工において，切削液中に超音波振動より生じるキャビテーションを援用し，切りくず排出性を促し工具寿命，加工面粗さの向上を目的としている．本報では，SUS304の微細穴あけ加工について，主軸にエアタービンスピンドルを採用し，キャビテーションの援用を検討した．その結果，小径ドリル加工での工具寿命は切りくず詰まりによる折損であり，キャビテーション援用により寿命向上が確認できた．
100.	Shuugo Higashiyama, Masahiro Masuda, Akira Oyama, 土居正幸 and 石川嘉晃 : 磁性流体を利用したダイナミックダンパー内蔵ボーリングバイトの開発(第4報), 2006年度精密工学会秋季大会学術講演会講演論文集, 441-442, Sep. 2006. (Summary) 中ぐり加工時のびびり振動を抑制するために，磁性流体を用いたダイナミックダンパー内蔵ボーリングバーを提案している．試作したボーリングバイトを用いて切削実験を行い，表面粗さからその性能について評価した結果を報告する．アスペクト比が8程度の大きな突出し長さであっても，高い減衰比が得られ，表面粗さは良くなった．
101.	Akira Oyama, Hitoshi Takagi, Junichi Hino and Hiroshi Mori : Development and Applications of Resin-Less ``Green'' Composites Reinforced by Bamboo Fiber, --- Machinability in Drilling ---, Proceedings of JSMS COMPOSITES 35, 220-222, Mar. 2006. (Summary) レジンレス竹繊維強化グリーンコンポジットの被削性を調べるため，直径2mmのドリルを用いて穴あけ加工を行った．加工中の切削抵抗を測定し，入口部および出口部の穴の性状について検討した．その結果，スラスト力は大きいこと，比切削抵抗は送りに依存し，送りが小さいほど寸法効果の影響により大きくなること，こばかけ，バリの大きさは，切削速度15m/min，送り0.03mm/revのときに小さくなり，被削材の繊維方向が穴の形状に影響を及ぼすこと，ならびに工具摩耗は，切れ刃外周部とチゼルエッジで大きくなることなどを明らかにした．
102.	Masahiro Masuda, Akira Oyama, Shuugo Higashiyama, 坂田興亜 and 土居正幸 : 磁性流体を利用したダイナミックダンパー内蔵ボーリングバーの開発(第3報), 2005年度精密工学会中国四国支部鳥取地方学術講演会講演論文集, 39-40, Nov. 2005. (Summary) 本論文は，ダイナミックダンパーを内蔵したボーリングバイトの振動剛性とそれを実際に加工に適用し，表面粗さで評価した結果について述べている．振動剛性を水平方向と垂直方向について調べた結果，最大減衰比をとる突き出し長さに若干の相違があり，表面粗さとの相関においては，水平方向の剛性が強く現れた．
103.	Akira Oyama, Masahiro Masuda, 沖之島正喜, Hiromu Iwata, 坂東慎之介 and Koji Hashimoto : チップソーによる鉄鋼材料の切断加工に関する研究(第7報), 2005年度精密工学会中国四国支部鳥取地方学術講演会講演論文集, 73-74, Nov. 2005. (Summary) 親板の硬さが異なるチップソーを用いて，直径30mmのS45C材を切断し，その硬さが摩耗進展速度や工作物の表面粗さなどに及ぼす影響について調査した．その結果，硬さ分布のある親板が望ましかった．また，親板の腰入れ量やばね定数，振動剛性といった機械的性質からも観察した．チップソーを用いた切断は断続的な力が加わっており，集中荷重を受けた親板の変位量よりも振動剛性の大きさが工具寿命や工作物表面粗さに関係することがわかった．
104.	Akira Oyama and Teruaki Ito : 創造基礎実習におけるフィードバック型評価手法の教育的効果に関する考察(第2報), 平成17年度工学·工業教育研究講演会講演論文集, 206-207, Sep. 2005. (Summary) 前報は徳島大学工学部機械工学科の1年次前期に開講している創造基礎実習にフィードバック評価方式を取り入れたカード型学習システムの概要と特徴について述べた．カード式フィードバック評価システム(CFES)によって主体的学習能力の向上が見られた，本報告では，創造基礎実習およびCFESに関する授業評価アンケートを実施し，それらの結果から評価システムが与えた教育的効果についての客観的な考察を行う．評価アンケートの結果からCFESの実施によって教育効果の向上が見られた．ポイントを集めるというゲーム的な感覚が受け入れられたと考えられる．
105.	Akira Oyama and Teruaki Ito : 創造基礎実習におけるフィードバック型評価手法の教育的効果に関する考察(第1報), 平成17年度工学·工業教育研究講演会講演論文集, 204-205, Sep. 2005. (Summary) 学生の創造力育成のためには学生自らが積極的に譟題に取り組むことが重要である，そのためには，学生のやる気を向上させるきっかけを与える評価システムを授業で導入することが大きな意味を持つと考えられる．学生の創造力育成における主体的学習能力向上を目指す試みとして，徳島大学工学部機械工学科の1年次前期に開講している創造基礎実習にフィードバック評価方式を取り入れたカード型学習システムを考案し，実施した．本報告では創造基礎実習の概要を簡単に述べた後，フィードバック評価方式について紹介する．
106.	Masahiro Masuda, Akira Oyama, 佐々木健一, 小川仁, 半田伸一 and 武知清孝 : ダイヤモンド電着工具によるアルミナセラミックの小径穴加工, 2005年度精密工学会秋季大会講演論文集, Sep. 2005.
107.	小川仁, Masahiro Masuda, Akira Oyama and 鴻上裕史 : キャビテーション援用小径ドリル加工に関する研究, 2005年度精密工学会秋季大会講演論文集, Sep. 2005.
108.	Akira Oyama, Masahiro Masuda, Hiromu Iwata, Koji Hashimoto and 吉田勝也 : チップソーによる鉄鋼材料の切断加工に関する研究, 2005年度精密工学会春季大会学術講演会講演論文集, Mar. 2005.
109.	Masahiro Masuda, Akira Oyama, 佐々木健一, 半田伸一, 武知清孝 and 小川仁 : ダイヤモンド電着工具によるアルミナセラミックの小径穴加工, 2004年度精密工学会秋季大会講演論文集, Sep. 2004.
110.	Akira Oyama and Hitoshi Takagi : 低学年時における導入教育としての創成科目のもつ教育効果, 平成16年度工学·工業教育研究講演会講演論文集, 381-382, Jul. 2004.
111.	Masahiro Masuda, Akira Oyama, 石川嘉晃, 坂田興亜 and 米延仁志 : 磁性流体を利用したダイナミックダンパー内臓ボーリングバーの開発, 2004年度精密工学会春季大会講演論文集, Mar. 2004.
112.	Masahiro Masuda, Akira Oyama, 森義典, 半田伸一, 武知清孝 and 小川仁 : ダイヤモンド電着工具によるアルミナセラミックの小径穴加工, 2004年度精密工学会春季大会講演論文集, Mar. 2004.
113.	Akira Oyama, Masahiro Masuda, Hiromu Iwata, Koji Hashimoto and 中村啓史郎 : チップソーによる鉄鋼材料の切断加工に関する研究, 2003年度精密工学会秋季大会学術講演会講演論文集, Oct. 2003.
114.	Kazuya Kusaka, Keitaro Horikawa, Akira Oyama and Hitoshi Takagi : Technique to Evaluate Each Student in Groups, --- A trial for Machine Creation Laboratory ---, 平成15年度工学·工業教育研究講演会講演論文集, 623-624, Sep. 2003.
115.	Akira Oyama, Hitoshi Takagi, Kazuya Kusaka and Keitaro Horikawa : Lego Mindstormsを利用した創造的ものづくり教育とその効果, 平成15年度工学·工業教育研究講演会講演論文集, 455-458, Sep. 2003.
116.	Kazuya Kusaka, Keitaro Horikawa, Akira Oyama and Hitoshi Takagi : Evaluation of personal records in a group, 日本機械学会2003年度年次大会講演論文集, Vol.V, 203-204, Aug. 2003.
117.	Akira Oyama, Hitoshi Takagi, Kazuya Kusaka and Keitaro Horikawa : Effective Practice of Machine Creation Laboratory Using Lego Mindstorms, 日本機械学会2003年度年次大会講演論文集, Vol.V, 201-202, Aug. 2003.
118.	Akira Oyama, Masahiro Masuda, 中村啓史郎, Hiromu Iwata and Koji Hashimoto : チップソーによる鉄鋼材料の切断加工に関する研究, 2003年度精密工学会春季大会学術講演会講演論文集, Mar. 2003.
119.	Akira Oyama, Masahiro Masuda, 中村啓史郎, Hiromu Iwata and Koji Hashimoto : チップソーによる鉄鋼材料の切断加工に関する研究, 2002年度精密工学会徳島地方講演会講演論文集, 11-12, Nov. 2002.
120.	Masahiro Masuda, Akira Oyama, 森義典, 半田伸一, 武知清孝, 武田実雄 and 小川仁 : ダイヤモンド電着工具によるアルミナセラミックの小径穴あけ加工, 2002年度精密工学会徳島地方講演会講演論文集, 5-6, Nov. 2002.
121.	Kazuya Kusaka, Akira Oyama, Keitaro Horikawa and Hitoshi Takagi : Lego Mindstormsを使った創成型教育の実施と評価, 平成14年度工学·工業教育研究講演会講演論文集, 371-374, Jul. 2002.
122.	Akira Oyama, Masahiro Masuda, 岩田弘 and 橋本浩二 : チップソーによる鉄鋼材料の切断加工に関する研究, 2002年度精密工学会春季大会学術講演会講演論文集, 16, Mar. 2002.
123.	Akira Oyama, Masahiro Masuda, 大久保和男, 岩田弘 and 橋本浩二 : チップソーによる鉄鋼材料切断加工に関する研究, 2001年度精密工学会長崎地方講演会講演論文集, 1, Nov. 2001.
124.	Akira Mizobuchi, Masahiro Masuda, 大久保和男, 岩田弘 and 橋本浩二 : 鉄鋼材料低速切断加工時のチップソーの性能, 2001年度精密工学会春季大会学術講演会講演論文集, 192, Mar. 2001.
125.	Akira Mizobuchi, Masahiro Masuda, 大久保和男, 岩田弘 and 橋本浩二 : チップソーによる鉄鋼材料切断時の工具寿命に及ぼす各種テンショニング法の影響, 第2回生産加工·工作機械部門講演会講演論文集, 157-158, Nov. 2000.
126.	Masahiro Masuda, Akira Mizobuchi, 菊山浩史 and 野上輝夫 : 単結晶ダイヤモンド工具による超精密切削加工時の切削挙動, 1999年度精密工学会松江地方学術講演会講演論文集, 51, Nov. 1999.
127.	Masahiro Masuda, Akira Mizobuchi, 長濱司 and 野上輝夫 : 高速エンドミル加工時の切削温度と工具寿命, 1999年度精密工学会秋季大会学術講演会講演論文集, 99, Sep. 1999.
128.	Akira Mizobuchi, 岡田敏揮, 堀内宰, 高巣周平, 池野順一 and 松井丈 : 工作機械におけるPZT併用式高精度位置決めに関する研究(第6報), 1999年度精密工学会春季大会学術講演会講演論文集, 101, Mar. 1999.
129.	Akira Mizobuchi, 堀内宰, 高巣周平, 池野順一 and 松井丈 : 工作機械におけるPZT併用式高精度位置決めに関する研究(第5報), 1997年度精密工学会秋季大会学術講演会講演論文集, 596, Oct. 1997.

Et cetera, Workshop:

1.	Akira Mizobuchi : 加工品位の向上と作業雰囲気の改善のための環境対応型無動力瓦切断機の試作, 精密工学会切削加工専門委員会, Sep. 2023.
2.	Akira Mizobuchi : 研究室紹介徳島大学加工プロセス&システム研究室(溝渕研グループ), Journal of the Japan Society for Abrasive Technology, Vol.67, No.8, 23, Aug. 2023.
3.	Tappei Oyamada and Akira Mizobuchi : ガラス板への穴加工における電着工具形状による加工液の流れと切りくず排出状況, 精密工学会難削材加工専門委員会, Mar. 2023.
4.	Akira Mizobuchi : 難削材料への小径穴あけ加工の高品位化および高能率化を目的とした加工技術の開発, 精密工学会中国四国支部70周年記念事業, Jan. 2023.
5.	Kota Honda and Akira Mizobuchi : 研削油剤に含有する界面活性剤が工具への切りくず付着に及ぼす影響, 精密工学会難削材加工専門委員会研究報告, No.23, 61-62, Jun. 2018.
6.	Akira Mizobuchi : 難削材料への高品位加工技術の紹介, 第112回四国テクノサイエンス研究会, Dec. 2015.
7.	Akira Mizobuchi : 難削材料への高品位加工技術の紹介, あわぎん経営研究会, Aug. 2015.
8.	Akira Mizobuchi : 小径穴加工時の切りくず処理の悩みを解決する工具の開発, 企業情報「とくしま」8月号, 6-7, Aug. 2015.
9.	Akira Mizobuchi : 小径ダイヤモンド電着工具によるガラス板への高品位斜め穴加工, Sep. 2014.
10.	Akira Mizobuchi : ガラス板への高品位通り穴加工を目的とした小径ダイヤモンド電着工具の開発, 第97回精密工学会超砥粒ホイールの研削性能に関する研究専門委員会, Jul. 2014.
11.	Akira Mizobuchi : 孔形成用ドリル, 第12回国際ナノテクノロジー総合展・技術会議, Jan. 2013.
12.	Akira Mizobuchi : ガラスへの小径貫通穴加工用工具の開発, イノベーション・ジャパン2012, Sep. 2012.
13.	Akira Mizobuchi : 硬脆材料への小径貫通穴あけ加工に関する研究, 香川大学工学部第7回先端工学研究発表会, 40-41, Jan. 2012.
14.	Tatsuo Sasaoka and Akira Mizobuchi : カプセル形ダイヤモンド電着工具を用いたガラス板材への通り穴あけ加工, 難削材加工専門委員会資料, Jun. 2011.
15.	Akira Mizobuchi : 硬脆材料への高品位穴あけ加工用工具, 第10回国際ナノテクノロジー総合展・技術会議, Feb. 2011.
16.	Akira Mizobuchi : 硬脆材料用穴あけ工具の開発, 徳島県「ものづくり新技術展示商談会」in SHARP, Feb. 2011.
17.	Akira Mizobuchi : 硬脆材料用貫通穴あけ工具の開発, 徳島ビジネスチャレンジメッセ2010, Oct. 2010.
18.	Tatsuo Sasaoka, Akira Mizobuchi, Junichi Hino, Motomichi Sonobe and 小川仁 : ダイヤモンド電着工具によるガラス基板への通り穴加工(第6報), 2010年度精密工学会秋季大会学術講演会講演論文集, 321-322, Sep. 2010.
19.	Akira Mizobuchi and Hitoshi Takagi : 竹繊維強化レジンレスグリーンコンポジットの成形と加工, 第10回エンジニアリングフェスティバル, 10, Sep. 2010.
20.	Akira Mizobuchi : ステンレス鋼のトレパン加工, 精密工学会難削材加工専門員会研究報告, Jun. 2010.
21.	Tatsuo Sasaoka, Akira Mizobuchi and 小川仁 : ダイヤモンド電着工具によるガラス基板への通り穴加工(第5報), 2009年度精密工学会秋季大会学術講演会講演論文集, 273-274, Aug. 2009. (Summary) 本研究では，電着工具をヘリカル運動させることにより，板厚2.83mmのガラス基板に直径3mmの通り穴を高精度・高能率であける方法を検討している．ステップ加工に比べ，加工能率は約5倍以上になるが，加工精度は粒度によってばらつく．加工精度を向上させるために，粒度が穴加工面に及ぼす影響について調べている．
22.	Hitoshi Takagi, Junichi Hino, Akira Mizobuchi and Koji Kusano : Development of resinless green composites reinforced by bamboo fiber, Engineering Festival 2007, 6, Sep. 2007. (Summary) 本報告は，熱硬化性樹脂，熱可塑性樹脂などを一切使用しないレジンレスグリーンコンポジットの開発に関するものである．原材料として爆砕法により抽出した竹繊維のみを用いることにより，低コストで高機能を有するグリーンコンポジットの開発を実現している．レジンレス竹繊維強化グリーンコンポジットの最適な作製プロセス条件の探索を行うとともに，この複合材料の引張強度特性，曲げ強度特性と断熱特性を調査している．また応用の際に重要となる被削性の評価も行い，最適な切削加工条件に関する結果も併せて報告している．
23.	Hitoshi Takagi and Akira Mizobuchi : レジンレス竹複合材料の試作と特性評価, 日本材料学会四国支部第40回材料強度・信頼性研究談話会, 1-4, Nov. 2006.
24.	Teruaki Ito and Akira Oyama : 創造基礎実習におけるフィードバック型評価手法の教育的効果に関する考察, 中国・四国工学教育協会第16回研究集会, Sep. 2006. (Summary) 徳島大学工学部機械工学科で開講されている創成科目の1つとして，創造基礎実習の概要を簡単に説明した．また，本授業における教育的効果を高めるための評価方法としてカード式フィードバック評価システム(CFES)を提案し，その結果について報告した．CFESの実施により，学生の機械工学への興味を喚起させ，創造力育成における主体的学習能力の向上を涵養できることがわかった．
25.	Masahiro Masuda and Akira Oyama : チップソーによる切断加工に関する研究, 難削材加工専門委員会資料, Oct. 2001.

Patent:

1.	今村雅紀, 深谷康太, Akira Mizobuchi and 佐久間淳 : 切断方法，生産方法，制御装置及びガス切断装置, 2020-157820 (Sep. 2020), 2022-051377 (Mar. 2022), .
2.	Akira Mizobuchi : 孔開けドリル, 2012-537727 (Oct. 2011), .
3.	Akira Mizobuchi : Drill, PCT/JP2011/072924 (Oct. 2011), WO 2012/046751 A1 (Apr. 2012), .

Grants-in-Aid for Scientific Research (KAKEN Grants Database @ NII.ac.jp)

Development of chip self-cleaning tool for prevent tool failure of prosthetic dental polishing bar (Project/Area Number: 17K11783 )
Studies on Oral Implant Surgery Support System towards Patient-Centered Health Care (Project/Area Number: 18300170 )
Search by Researcher Number (70314838)

Associate Professor : Mizobuchi, Akira

Research

Personal Web Page

Field of Study

Subject of Study

Book / Paper

Book:

Academic Paper (Judged Full Paper):

Academic Letter:

Review, Commentary:

Proceeding of International Conference:

Proceeding of Domestic Conference:

Et cetera, Workshop:

Patent:

Grants-in-Aid for Scientific Research (KAKEN Grants Database @ NII.ac.jp)