| 摘要 |
PROBLEM TO BE SOLVED: To provide a wear resistant film coating tool capable of coping with drying and high speed of cutting. SOLUTION: In this wear resistant film coating tool, the hard film is made of an A layer made of a chemical composition shown by (CraX1-a)(NμO1-μ), X = one kind or two kinds or more of metal components except Cr and 0.5<=a<1, 0.5<=μ<=1 and a B layer made of a chemical composition shown by (TiAl)(NνO1-ν) and 0.5<=∼<=1. When elastic moduli of the A layer and the B layer are made as EA and EB, respectively, EA/EB<1 is satisfies, the hard film is made by alternately coating the A layer and the B layer by each one layer or more.
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