发明名称 |
Surface-coated carbide alloy tool |
摘要 |
<p>A cutting tool has a surface-coated carbide alloy and a wear-resistant coating layer which has excellent adhesion and chipping resistance. The cutting tool has a surface-coated carbide alloy comprising: a tungsten carbide-based carbide alloy substrate having an amorphous layer formed by an arc ion plating surface treatment to an average depth of 1 to 50 nm from the surface; and a wear-resistant coating layer deposited physically and/or chemically on the surface of the tungsten carbide-based carbide alloy substrate, the wear-resistant coating layer comprising: (a) a lower tough layer made of a titanium nitride layer and having an average thickness of 0.1 to 5 mu m; and a single-layered or multi-layered surface hard layer which is made of a composite nitride layer of Ti and Al and a composite carbonitride layer of Ti and Al, which respectively satisfy the composition formula: (Ti1-XAlX)N and the composition formula: (Ti1-XAlX)C1-YNY (wherein X represents 0.15 to 0.65 and Y represents 0.5 to 0.99 in terms of an atomic ratio), and has an average thickness of 0.5 to 15 mu m.</p> |
申请公布号 |
EP1266980(A2) |
申请公布日期 |
2002.12.18 |
申请号 |
EP20020007228 |
申请日期 |
2002.03.28 |
申请人 |
MITSUBISHI MATERIALS CORPORATION |
发明人 |
OKADA, KOKI;TASHIRO, YASUHIKO;NAKAMURA, EIJI |
分类号 |
C23C14/02;C23C30/00;(IPC1-7):C23C30/00;C23C14/06;C23C14/32 |
主分类号 |
C23C14/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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