发明授权
- 专利标题： Stress-relieved diamond inserts
- 专利标题（中）： 应力消除金刚石刀片
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申请号： US11349319申请日： 2006-02-07
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公开(公告)号： US07543662B2公开(公告)日： 2009-06-09
- 发明人: J. Daniel Belnap , Lynn Belnap , Christopher A. Tucker
- 申请人： J. Daniel Belnap , Lynn Belnap , Christopher A. Tucker
- 申请人地址： US TX Houston
- 专利权人： Smith International, Inc.
- 当前专利权人： Smith International, Inc.
- 当前专利权人地址： US TX Houston
- 代理机构： Osha • Liang LLP
- 主分类号： E21B10/56
- IPC分类号： E21B10/56
摘要：
A drill bit including at least one stress-relieved cutting element, wherein the at least one cutting element is mounted on the drill bit, wherein the stress-relieved cutting element includes a substrate, at least one transition layer disposed upon the substrate and a polycrystalline diamond layer having a thickness of at least 0.008 inches disposed upon the at least one transition layer.
公开/授权文献
- US20060180354A1 Stress-relieved diamond inserts 公开/授权日：2006-08-17
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