The science of pCBN: Development of new grades spurs wider application

摘要

Polycrystalline cubic born nitride (pCBN). cutting tools have I been around for decades, since materials scientists first synthesized pCBN using a process similar to that developed to produce industrial diamonds. pCBN is second only to diamond in hardness; unlike diamond tools, however, pCBN tooling can be used to machine ferrous alloys-even steels hardened to R{sub}C 60 and higher.