2010 Fiscal Year Final Research Report
Development of new coating film having both high adhesion and high abrasive-wear-resistance for cutting tools
| Project/Area Number |
20560120
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Production engineering/Processing studies
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| Research Institution | Nara National College of Technology |
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Principal Investigator |
WADA Tadahiro Nara National College of Technology, 機械工学科, 教授 (10141912)
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| Project Period (FY) |
2008 – 2010
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| Keywords | 切削 / 工具摩耗 / コーテッド工具 / 焼入れ鋼 / W系被膜 |
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| Research Abstract |
In cutting, coated cemented carbide tools seem to be effective tool materials. TiN or (Ti, Al) N are generally used as the coating film. A titanium-tungsten based coating films have been developed. The titanium-tungsten based coating films exhibited a superior critical scratch load. However, the hardness of the titanium-tungsten based coating films were lower than that of (Ti, Al) N coating film. So, titanium-tungsten-silicon based coating films, namely (Ti, W, Si) N, (Ti, W, Si) C or (Ti, W, Si) (C,N) coating film, have been developed. These newly titanium-tungsten-silicon based coating films exhibit both superior critical scratch load and hardness as compared with TiN, (Ti, Al) N coating film.
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