The invention provides a tool component comprising a first layer of polycrystalline cBN material which has a rake (working) surface and a flank surface and comprises less than 70 vol% cBN; and a secondary layer across the rake surface or at least partially across the rake surface and comprising a refractory material and optionally a binder phase and optionally cBN, wherein the secondary layer has a higher resistance to crater formation than the first layer of cBN material and has a lower affinity towards iron than cBN.
申请公布号
WO2007122490(A3)
申请公布日期
2008.11.20
申请号
WO2007IB01046
申请日期
2007.04.23
申请人
ELEMENT SIX (PRODUCTION) (PTY) LTD;CAN, NEDRET;AKDOGAN, GUVEN;HARDEN, PETER, MICHAEL;PRETORIUS, CORNELIUS, JOHANNES
发明人
CAN, NEDRET;AKDOGAN, GUVEN;HARDEN, PETER, MICHAEL;PRETORIUS, CORNELIUS, JOHANNES