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 less 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 4a, 5a, 6a elements of the periodic table and Al, 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 coated layer is not more than 0.1 mu m. <IMAGE> |
申请公布号 |
ZA200007090(B) |
申请公布日期 |
2001.06.06 |
申请号 |
ZA20000007090 |
申请日期 |
2000.11.30 |
申请人 |
SUMITOMO ELECTRIC INDUSTRIES, LTD. |
发明人 |
MICHIKO OTA;JUNICHI SHIRAISHI;HISANORI OHARA;TOMOHIRO FUKAYA;TETSUO NAKAI;HARUYO FUKUI |
分类号 |
C23C14/06;C04B41/52;C04B41/89;C23C30/00 |
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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