A SELF-SINTERED POLYCRYSTALLINE CUBIC BORON NITRIDE (PCBN) CUTTING ELEMENT AND A METHOD OF FORMING THE SELF-SINTERED PCBN CUTTING ELEMENT
摘要
<p>The present disclosure relates to cubic boron nitride (cBN) cutting elements that have high cBN content and that are cuttable by electric discharge machining (EDM). A cutting element according to an embodiment includes a self-sintered polycrystalline cubic boron nitride (PCBN) compact, having a first phase of cubic boron nitride (cBN) particles and a ceramic binder phase with titanium compounds. The first phase occupies greater than 80% by volume of the self-sintered PCBN compact. The self-sintered PCBN compact has an electrical conductivity sufficient to be cuttable by electrical discharge machining.</p>
申请公布号
WO2012033930(A3)
申请公布日期
2012.06.07
申请号
WO2011US50853
申请日期
2011.09.08
申请人
SMITH INTERNATIONAL, INC.;BAO, YAHUA;HORMAN, SCOTT;YAO, XIAN;LIU, QINGYUAN