| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a hard film for a cutting tool which film combines a superior wear resistance and deposition resistance. <P>SOLUTION: A hard film 20 used to coat the surface of a cutting tool, such as an end mill 10 is a single-layer film made of a nitride or carbonitride expressed as Ti<SB POS="POST">a</SB>Cr<SB POS="POST">b</SB>Al<SB POS="POST">c</SB>Mo<SB POS="POST">1-a-b-c</SB>, where an atomic ratio (a) is ≥0.2 and ≤0.7, b is ≥0.01 and ≤0.2, c is ≥0.01 and ≤0.2, and 1-a-b-c is ≥0.1. The total film thickness is ≥0.2 μm and ≤10.0 μm. Because of containing Mo, an Mo oxide is formed on its surface, which makes the film show superior deposition resistance and high hardness. Hence the hard film 20 combining superior wear resistance and deposition resistance is provided. <P>COPYRIGHT: (C)2012,JPO&INPIT |
