The research object is the weighing and grinding process in the PDC abrasion ra-tio testing process,the PDC weighing process was refined and the influences of the place-ment position and the magnetic isolation method on the PDC weighing stability was dis-cussed,and the influence of the grinding position,grinding angle and grinding time on PDC abrasion ratio were studied.The results show that the magnetism of PDC is the key factor affecting its weighing stability,and the wood spacer can effectively reduce the weighing error of PDC.The relative deviation of the abrasion ratio of the symmetrical po-sition of the PDC is only 1.8%~2.0%,but the abrasion ratio of PDC during 135° grind-ing is 1.3~2.8 times that of PDC during 45° grinding.The abrasion ratio of PDC decrea-ses with increasing grinding time,and the maximum decrease reaches 18.3%.
关键词
聚晶金刚石复合片/称量/磨耗比/磨削位置/磨削角度
Key words
polycrystalline diamond compact(PDC)/weighing/abrasion ratio/grinding po-sition/grinding direction