| 摘要 |
A tool consists of a base material selected from cemented carbide, tool steels, cermet, or hard materials, and a coating of two or more layers. At least one coating layer has the composition Ti-Al-Ta-N and at least one further coating layer has the composition Ti-Al-Ta-Me-N. The component Me is one more elements selected from the group consisting of Si, V, B. The tool, which is preferably a wearing part, is distinguished by a high wear resistance that improves the service life, in particular where high demands are imposed on the tool.
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