发明名称 |
METHODS OF FORMING POLYCRYSTALLINE DIAMOND CUTTING ELEMENTS, CUTTING ELEMENTS, AND EARTH BORING TOOLS CARRYING CUTTING ELEMENTS |
摘要 |
Methods of forming polycrystalline diamond elements include forming a polycrystalline diamond compact comprising a cavity in a surface thereof. A catalyst is at least substantially removed from the polycrystalline diamond compact, and the polycrystalline diamond compact is secured to a supporting substrate. Cutting elements include a diamond table formed with a cavity in a back side surface thereof and a supporting substrate secured to the back side surface of the diamond table. Earth-boring tools comprise a bit body carrying one or more cutting elements including a diamond table, a supporting substrate and an adhesion layer comprising a superhard material between and bonding the cutting table and the supporting substrate. |
申请公布号 |
EP2464810(A4) |
申请公布日期 |
2015.11.04 |
申请号 |
EP20100808585 |
申请日期 |
2010.08.09 |
申请人 |
BAKER HUGHES INCORPORATED |
发明人 |
LYONS, NICHOLAS J. |
分类号 |
E21B10/54;C04B35/52;C04B37/02;E21B10/42;E21B10/62 |
主分类号 |
E21B10/54 |
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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