摘要
介绍了立方氮化硼刀具材料(PcBN)的制备过程,并制备了六种不同配方的样品加工淬硬钢。通过切削实验和性能检测,发现PcBN刀片在加工淬硬钢时cBN浓度起着关键作用,切削同样的路程,低浓度PcBN的后刀面磨损量小。经扫描电镜观察,CoAl合金粉能够提高PcBN烧结刀具材料的致密度。测量耐磨性时,证明用于金刚石复合片PCD性能检测的磨耗比技术指标不适用于PcBN材料的检测。
PcBN cutting tool materials were prepared using two kinds of binder and in three different concentrations of cBN.Through cutting experiment on hardened steel,it was found that cBN concentration played a key role on the performances of PcBN.After cutting for the same distance,PcBN tools of low concentration had smaller amount of flank wear.SEM observation revealed that CoAl alloy powder improved the density of the PcBN tool material.Based on the results of wear resistance test,it is suggested that the technical indicators of wear test for PCD is not suitable for PcBN.
出处
《金刚石与磨料磨具工程》
CAS
北大核心
2011年第6期75-78,共4页
Diamond & Abrasives Engineering
关键词
聚晶立方氮化硼(PcBN)
刀具
淬硬钢
polycrystalline cubic boron nitride（PcBN）
cutting tool
hardened steel
