发明名称 |
Surface-coated cutting tool having hard-coating layer with excellent chipping resistance and fracturing resistance |
摘要 |
<p>A surface-coated cutting tool, which has a hard-coating layer with excellent chipping and fracturing resistances in a high speed intermittent cutting work, is provided. The surface-coated cutting tool includes a cutting tool body, which is made ofWC cemented carbide or TiCN-based cermet, and a hard-coating layer, which is vapor deposited on the cutting tool body and has a lower layer and an upper layer. The lower layer is a Ti compound layer, and the upper layer is an aluminum oxide layer. There is a micropore-rich layer in the lower layer in the vicinity of the interface between the lower and upper layers. There are micropores with diameters of 2 to 70 nm in the micropore-rich layer. The diameters of the micropores in the micropore-rich layer shows a bimodal distribution pattern.</p> |
申请公布号 |
EP2484807(A1) |
申请公布日期 |
2012.08.08 |
申请号 |
EP20120153629 |
申请日期 |
2012.02.02 |
申请人 |
MITSUBISHI MATERIALS CORPORATION |
发明人 |
TATSUOKA, SHO;TOMITA, KOHEI;OSADA, AKIRA;NAKAMURA, EIJI |
分类号 |
C23C30/00 |
主分类号 |
C23C30/00 |
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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