2022 Fiscal Year Final Research Report
High efficiency mirror like surface finishing of diamond by UV-assisted fix abrasive polishing
Project/Area Number |
20K04207
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Research Category |
Grant-in-Aid for Scientific Research (C)
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Allocation Type | Multi-year Fund |
Section | 一般 |
Review Section |
Basic Section 18020:Manufacturing and production engineering-related
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Research Institution | Kyoto Institute of Technology |
Principal Investigator |
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Project Period (FY) |
2020-04-01 – 2023-03-31
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Keywords | diamond / fixed-abrasive polishing / high speed polishing |
Outline of Final Research Achievements |
High-speed UV-assisted fixed-abrasive polishing was proposed as a high-efficiency mirror like surface finishing for diamond. This method superimposes a photochemical reaction by ultraviolet-ray irradiation on high-speed fixed-abrasive polishing method using a mechanochemical abrasive wheel. It was clarified that the removal rate of both chemical vapor deposition (CVD) diamond and sintered polycrystalline diamond (PCD) was improved by increasing the grinding wheel peripheral speed to 90m/s.
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Free Research Field |
生産工学・加工学
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Academic Significance and Societal Importance of the Research Achievements |
ダイヤモンドは,現存する物質中でもっとも硬い物質であることに加え,無潤滑の条件においても摩擦係数の非常に低い材料である.一方,その硬度と高い化学的安定性のため加工は極めて困難な材料である.ダイヤモンドを摺動部等の機械部品として使用するには,高能率な鏡面仕上げ加工の確立が急務となる.これに対して本研究では,メカノケミカル作用を有する複合砥粒砥石において,90m/sの高速領域での使用を実現し,表面粗さと加工能率とを両立して改善可能であることを明らかにした.これによってダイヤモンドに対する超高能率かつ高品位な鏡面加工の実現可能性を見出したといえる.
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