发明名称 Superhard cutting element utilizing tough reinforcement posts
摘要 This invention relates to superhard cutting elements. Specifically, this invention relates to polycrystalline diamond and cubic boron nitride cutting elements produced by means of high pressure and high temperature. The cutting element of this invention features cylindrical reinforcement posts to toughen the cutting surface in the same fashion that rebar strengthens concrete. This invention also discloses an economical means of producing the substrate of the present invention.
申请公布号 US6029760(A) 申请公布日期 2000.02.29
申请号 US19980040658 申请日期 1998.03.17
申请人 HALL, DAVID R. 发明人 HALL, DAVID R.
分类号 E21B10/56;E21B10/573;(IPC1-7):E21B10/46 主分类号 E21B10/56
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