发明名称 |
Coated hard metal cutting tool and its fabrication method |
摘要 |
Diamond-coated hard metal cutting tool consists of a diamond layer on a substrate, and a carbon layer. The diamond layer is polycrystalline and the diamond crystals are statically orientated. The carbon layer has an amorphous structure and contains less than 70% covalent sp3 bonds of carbon atoms. An Independent claim is also included for a diamond-coated hard metal cutting tool comprising coating a hard metal base body with a crystalline diamond layer in a CVD process at above 800 degrees C, carrying out PVD-Re sputtering to change the sp3 diamond coating to an sp2 double bonds, and applying a carbon coating in a PVD process at less than 500 degrees C so that the carbon layer is formed as an amorphous structure by adding a reactive gas. |
申请公布号 |
EP1182274(A1) |
申请公布日期 |
2002.02.27 |
申请号 |
EP20010120344 |
申请日期 |
2001.08.24 |
申请人 |
PLASMOTEC GMBH & CO. KG |
发明人 |
MUSCHE, STEFAN M.;HUFSCHMIED, RALPH RUDOLF |
分类号 |
B23P15/28;C23C16/26;C23C16/27;C23C30/00 |
主分类号 |
B23P15/28 |
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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