发明名称 |
CBN SINTERED BODY FOR HIGH SURFACE INTEGRITY MACHINING, CBN SINTERED BODY CUTTING TOOL, AND CUTTING METHOD USING THE SAME |
摘要 |
A sintered body with high cBN content that as compared with conventional cBN sintered body tools, inhibits the occurrence of machining affected layer on a machining plane of machinable material and promotes the retention of compressive stress to thereby attain prolongation of the fatigue life of machined parts and also realize prolongation of the tool life. There is provided a cBN sintered body for high-quality surface property machining characterized in that the topmost surface of cBN sintered body (1) containing, by vol.%, 87 to 99% of cBN component and having a thermal conductivity of 100 W/m.K or higher is coated with 0.5 to 12 mum thick thermostable film (2) constituted of a compound of at least one element selected from among Group 4a, Group 5a and Group 6a elements and Al and at least one element selected from among C, N and O. |
申请公布号 |
KR20080069508(A) |
申请公布日期 |
2008.07.28 |
申请号 |
KR20077003652 |
申请日期 |
2006.05.30 |
申请人 |
SUMITOMO ELECTRIC HARDMETAL CORP. |
发明人 |
KUKINO SATORU;KURODA YOSHIHIRO;FUKAYA TOMOHIRO;OKAMURA KATSUMI |
分类号 |
C04B41/87;B23B27/14;B23B27/20;C04B35/583 |
主分类号 |
C04B41/87 |
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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