Development and applications of precision diamond cutting tools utilizing the modification of surface structure induced by a focused ion beam irradiation

2016 Fiscal Year Final Research Report

• Project/Area Number: 26420070
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Production engineering/Processing studies
• Research Institution: Toyama Industrial Technology Center,
• Principal Investigator: Kawasegi Noritaka 富山県工業技術センター, その他部局等, 主任研究員 (30443419)
• Research Collaborator: Morita Noboru 千葉大学, 大学院工学研究科, 教授
• Project Period (FY): 2014-04-01 – 2017-03-31
• Keywords: 精密加工 / ダイヤモンド工具 / 集束イオンビーム / 機能性表面 / テクスチャ / 切削加工 / レーザ加工

Outline of Final Research Achievements

In this study, we developed high-performance diamond and cBN cutting tools, used in ultraprecision cutting, by the modification of surface structures induced by focused ion beam irradiation and heat treatment. It was found that the texture on the tool surface enables us to reduce friction between tool and chip interface, and improve resultant cutting performance. The dependences of the texture effect on the machining conditions and texture shape was investigated. This technique was also applied to other tool materials used in ultra-precision machining, such as nano-polycrystalline diamond and binderless cBN. In addition, high-efficient patterning method was investigated. These results indicate that our method is effective for improvement of ultra-precision cutting technology.

Free Research Field

精密加工