| Budget Amount *help |
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2010: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2009: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2008: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
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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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