| 摘要 |
PROBLEM TO BE SOLVED: To provide a surface coated cutting tool which is excellent in all of the oxidation resistance, chipping resistance, and wear resistance by coating the surface of a base material with a electrically conductive oxide film, which can be formed by the physical vapor deposition method, and further has a high product value because of its beautiful appearance color. SOLUTION: The surface coated cutting tool has a coating layer on the base material. The coating layer has an inner layer and an outer layer arranged on the base material in this order. The inner layer is composed of the compound of one or more elements selected from the group composed of metals belonging to the 4a group, the 5a group, the 6a group of the periodic table, and Al and Si, and one or more elements selected from the group composed of C, N, and O. The outer layer is composed of the oxide film having the electric conductivity. COPYRIGHT: (C)2006,JPO&NCIPI
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