DIAMOND ENHANCED INSERT WITH FINE AND ULTRAFINE MICROSTRUCTURE OF PCD WORKING SURFACE RESISTING CRACK FORMATION
摘要
<p>An insert for a drill bit may include a metallic carbide body; an outer layer of polycrystalline diamond material on the uppermost end of the insert, wherein the polycrystalline diamond material comprises: a plurality of interconnected diamond grains; a plurality of additive grains; a binder material; wherein the average additive grain size is smaller than the average diamond grain size.</p>
申请公布号
WO2013101686(A1)
申请公布日期
2013.07.04
申请号
WO2012US71107
申请日期
2012.12.21
申请人
SMITH INTERNATIONAL INC.;FANG, YI;BAO, YAHUA;HORMAN, SCOTT L.;BELNAP, DANIEL J.
发明人
FANG, YI;BAO, YAHUA;HORMAN, SCOTT L.;BELNAP, DANIEL J.