发明名称 |
COATED PCBN CUTTING TOOLS |
摘要 |
The present invention provides a coated sintered body which can be used in precious machining hardened steel. The coated PCBN cutting tool comprises a substrate which contains not le ss than 35 volume % and not more than 85 volume % of CBN, and a hard coated layer formed on the substrate. The hard coated layer comprises at least one compound layer consisting of at least one element selected from a group of 4 a, 5a, 6a elements of the periodic table and A1, and at least one element selected from a group of C, N and O. The thickness of the layer is not less than 0.3 .mu.m and not more than 10 .mu.m. The center-line mean roughness of the hard coate d layer is not more than 0.1 .mu.m. |
申请公布号 |
CA2327092(C) |
申请公布日期 |
2004.04.20 |
申请号 |
CA20002327092 |
申请日期 |
2000.11.30 |
申请人 |
SUMITOMO ELECTRIC INDUSTRIES, LTD. |
发明人 |
OTA, MICHIKO;SHIRAISHI, JUNICHI;FUKAYA, TOMOHIRO;NAKAI, TETSUO;OHARA, HISANORI;FUKUI, HARUYO |
分类号 |
C23C14/06;C04B41/52;C04B41/89;C23C30/00;(IPC1-7):B24D3/14 |
主分类号 |
C23C14/06 |
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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