发明名称 |
Cutting element having a stud and cutting disk bonded thereto |
摘要 |
A cutting element for use in rotary drill bits comprises a generally cylindrical stud and a cutting disk bonded to a supporting surface of the stud. The supporting surface intersects a cylindrical side surface of the stud to form an edge. The supporting surface includes a plurality of alternating projections and grooves extending in a front-to-rear direction of a supporting surface. The projections and grooves include rear ends terminating short of the edge to minimize the formation of stress cracks in the edge.
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申请公布号 |
US4716975(A) |
申请公布日期 |
1988.01.05 |
申请号 |
US19870010320 |
申请日期 |
1987.02.03 |
申请人 |
STRATA BIT CORPORATION |
发明人 |
DENNIS, MAHLON D. |
分类号 |
E21B10/56;E21B10/573;(IPC1-7):E21B10/46 |
主分类号 |
E21B10/56 |
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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