Create micro patterned texture on three dimensional curved surface by ultrasonic milling

2021 Fiscal Year Final Research Report

• Project/Area Number: 18K03889
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Review Section: Basic Section 18020:Manufacturing and production engineering-related
• Research Institution: Ichinoseki National College of Technology
• Principal Investigator: Hara Keisuke 一関工業高等専門学校, その他部局等, 准教授 (30515812)
• Project Period (FY): 2018-04-01 – 2022-03-31
• Keywords: トライボロジー / テクスチャ加工 / 超音波ミーリング

Outline of Final Research Achievements

This research theme focused to fabricating technique periodical dimple (called "texture") by milling on the finished surface. First, I fabricated a texturing machine tool and texturing experiments by the machine were performed. It was confirmed that the developed texturing technique can perform periodical texturing on concave spherical surface. In addition, I designed and fabricated a tribological experiments instrument for evaluate tribological properties of 3D form surface. In future works that I'll conduct optimization research of texture properties to reduce friction of various machines to realize energy save and carbon neutral society.

Free Research Field

機械加工・機械要素

Academic Significance and Societal Importance of the Research Achievements

近年，高硬度，耐摩耗性，耐腐食性，生体適合性に優れた機能性材料が開発されている．それらの材料は，過酷な環境下で使用される摺動部を持つ機械類，人工股関節など医療製品への活用が期待されている．これらの摺動部を有する製品は，その動作を滑らかにすること，長寿命化や信頼性向上のため，耐摩耗性の向上，摩擦抵抗の減少が強く望まれる．現在，脱炭素社会実現のため省エネにつながる摩擦低減技術が重要になる．本研究課題の成果は，曲面へのテクスチャ加工により，これらの問題を解決できる糸口を見出したと考える．