2021 Fiscal Year Final Research Report
Examination of replaceability of scraping with texturing by micro-vibration assisted cutting
Project/Area Number |
19K04102
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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 | Ibaraki University |
Principal Investigator |
Takeyuki Yamamoto 茨城大学, 理工学研究科(工学野), 技術職員 (40396594)
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Co-Investigator(Kenkyū-buntansha) |
清水 淳 茨城大学, 理工学研究科(工学野), 教授 (40292479)
小貫 哲平 茨城大学, 理工学研究科(工学野), 准教授 (70400447)
周 立波 茨城大学, 理工学研究科(工学野), 教授 (90235705)
尾嶌 裕隆 茨城大学, 理工学研究科(工学野), 准教授 (90375361)
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Project Period (FY) |
2019-04-01 – 2022-03-31
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Keywords | 表面テクスチャ / きさげ / 振動援用切削 / 摩擦 / 境界潤滑 / なじみ |
Outline of Final Research Achievements |
A method was developed to fabricate surface textures with periodic arrangement of indentation patterns on sliding surfaces by means of micro-cutting while oscillating a triangular pyramidal diamond indenter as a cutting tool in the depth-of-cut direction. In this method, the addition of on-machine micro-cutting enables to remove the pileups generated around the indentation patterns. Ball-on-disk sliding tests under dry and wet conditions on textured surfaces fabricated by this method revealed that the friction coefficient is lower on textured surfaces with relatively high area density than on mirror surfaces or textured surfaces with simple cutting grooves, and that the time required to reach the running-in state is shorter on textured surfaces with relatively high area density. This demonstrates the usefulness of this surface texturing method.
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Free Research Field |
加工学および生産工学関連
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Academic Significance and Societal Importance of the Research Achievements |
エネルギー問題や機械・装置類のメンテナンス問題の低減にも関連する、摩擦・摩耗を低減させる方法として、圧痕状パターンの周期的配置によるテクスチャ表面を開発した。開発した表面が、摩擦・摩耗の低減のみならず、なじみ時間の短縮に有用なことを明らかにし、工作機械などのしゅう動面の製造において用いられている、きさげ作業という職人技に対する代替技術となり得ることを示した。
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