发明名称 |
CUTTING ELEMENTS FOR EARTH-BORING TOOLS, EARTH-BORING TOOLS INCLUDING SUCH CUTTING ELEMENTS AND RELATED METHODS |
摘要 |
Cutting elements, earth-boring drill bits having such cutting elements and related methods are described herein. In some embodiments, a cutting element for an earth-boring tool may include a diamond table having an indentation in a cutting face thereof and a shaped feature in a substrate at the interface between the diamond table and the substrate, the shaped feature corresponding to the indentation in the cutting face of the diamond table. In further embodiments, a cutting element for an earth-boring tool may include a sacrificial structure positioned within an indentation in a diamond table. In additional embodiments, a method of forming a cutting element may include positioning a sacrificial structure in a mold, positioning a powdered precursor material over the sacrificial structure, and pressing and sintering the powdered precursor material to form a diamond table having an indentation in a cutting face formed by the sacrificial structure. |
申请公布号 |
EP2561171(A4) |
申请公布日期 |
2016.04.13 |
申请号 |
EP20110772757 |
申请日期 |
2011.04.22 |
申请人 |
BAKER HUGHES INCORPORATED;ELEMENT SIX (PRODUCTION) (PTY) LTD. |
发明人 |
DIGIOVANNI, ANTHONY, A.;LYONS, NICHOLAS, J.;HALE, MATTHEW, S.;LIVERSAGE, JOHN, H. |
分类号 |
E21B10/573;B24D99/00;E21B10/567 |
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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