发明名称 Thermally stable polycrystalline ultra-hard constructions
摘要 Thermally stable polycrystalline constructions include a body having a polycrystalline ultra-hard phase and a plurality of empty voids. The construction includes a backside support member over at least a portion of the backside surface of the body and a sidewall support member over at least a portion of the sidewall surface of the body extending an axial distance along at least a portion of the body and at least partially covering a circumferential surface of the body. The construction has a compressive stress exerted on the body.
申请公布号 GB0621679(D0) 申请公布日期 2006.12.06
申请号 GB20060021679 申请日期 2006.11.01
申请人 SMITH INTERNATIONAL INC 发明人
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