| 摘要 |
PROBLEM TO BE SOLVED: To provide a coated tool which can be easily determined whether the tool is used or not, which is excellent in the film adhesion and slidability of the tool surface, and whose cutting durability is improved, compared with a conventional one. SOLUTION: The base surface of this tool is coated with a boron containing film on the tool surface side in relation to an alminum oxide film. The boron containing film is constituted of a single layer film consisting of any one of carbide, nitride, carbonitride, carboxide, nitroxide and carbonitroxide consisting of boron and one or two metals of 4a, 5a, and 6a groups in the periodic table or a multilayer film consisting of two or more thereof, having residual tensile stress. COPYRIGHT: (C)2003,JPO
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