发明名称 |
Thermally stable polycrystalline diamond cutting elements and bits incorporating the same |
摘要 |
Cutting elements are provided having substrates including end surfaces. TSP material layers extend over only a portion of the end surfaces or extend into the substrates below the end surfaces. Bits incorporating such cutting elements are also provided.
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申请公布号 |
US7533740(B2) |
申请公布日期 |
2009.05.19 |
申请号 |
US20060350620 |
申请日期 |
2006.02.08 |
申请人 |
SMITH INTERNATIONAL INC. |
发明人 |
ZHANG YOUHE;SHEN YUELIN;KESHAVAN MADAPUSI K.;AZAR MIKE |
分类号 |
E21B10/573;E21B10/46 |
主分类号 |
E21B10/573 |
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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