2023 Fiscal Year Final Research Report
High precision texturing of micro shape with ultrasonic vibration assisted indentation
| Project/Area Number |
20H02486
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Review Section |
Basic Section 26050:Material processing and microstructure control-related
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| Research Institution | Chubu University |
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Principal Investigator |
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| Project Period (FY) |
2020-04-01 – 2024-03-31
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| Keywords | マイクロインデンテーション / 超音波振動援用 / アモルファス金属 / テキスチャリング / ダイヤモンド圧子 / レーザ加工 |
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| Outline of Final Research Achievements |
An ultrasonic vibration-assisted indentation system/method is proposed and developed to fabricate structured or textured surfaces more precisely and efficiently than the conventional micro-cutting process. Indenters made of single crystalline diamond (SCD) were fabricated by laser fabrication and polishing with diamond abrasives on a cast iron plate. In the experiments, the microarray molds of four-corner cone and semi-sphere shapes were generated precisely on the electroless Ni-P substrate with ultrasonic vibration-assisted indentation using the SCD indenters. From the indentation experiments, it is clear that the microtextured patterns were formed precisely and effectively by using the developed indentation system. Finally, the effects of the textured patters were evaluated experimentally, and their effects were clarified in the optical devices and medical devices.
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| Free Research Field |
精密加工
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| Academic Significance and Societal Importance of the Research Achievements |
表面にナノ・マイクロメータレベルのテキスチャリング創成のニーズが増大し，光学レンズの回折効果の付加・色消し効果の付加，歯科用Tiインプラントの生体細胞融合性の向上，表示パネルの反射防止機能の付加，ソーラパネルの吸収率の向上，撥水性の向上など様々な効果が期待されている．従来の切削加工に比べて効率の悪い，量産性が期待できるため，テキスチャリング基板や金型の高精度で高能率な加工が実現できるなど，実用面での意義が深い．
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