发明名称 |
Composite cutter substrate to mitigate residual stress |
摘要 |
A cutting element comprising a polycrystalline diamond layer 48, a reduced coefficient of thermal expansion (CTE) substrate 43, the substrate comprising a matrix material and diamond particles 46 embedded in the material and having diamond filled regions 45. |
申请公布号 |
GB2512776(A) |
申请公布日期 |
2014.10.08 |
申请号 |
GB20140012216 |
申请日期 |
2011.02.08 |
申请人 |
SMITH INTERNATIONAL, INC. |
发明人 |
YUELIN SHEN;YOUHE ZHANG;JIBIN SHI;YURI BURHAN;GREGORY T LOCKWOOD |
分类号 |
E21B10/567;E21B10/573 |
主分类号 |
E21B10/567 |
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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