公开(公告)号：WO2022268660A1

公开(公告)日：2022-12-29

申请号：PCT/EP2022/066581

申请日：2022-06-17

Applicant: AB SANDVIK COROMANT

Inventor： DAHL, Leif ,  ULITZKA, Tim

IPC: B22F7/06 ,  B22F5/00 ,  B23K1/00 ,  B23K1/008 ,  B23K35/00 ,  B23K35/02 ,  B23K35/30 ,  C22C5/06 ,  C22C5/08 ,  C22C38/06 ,  C22C38/10 ,  C22C38/12 ,  C22C38/14 ,  C22C38/44 ,  C22C38/50 ,  C22C38/52 ,  B22F2005/001 ,  B23K1/0008 ,  B23K1/19 ,  B23K2101/20 ,  B23K2103/04 ,  B23K2103/16 ,  B23K2103/18 ,  B23K31/025 ,  B23K35/004 ,  B23K35/0233 ,  B23K35/025 ,  B23K35/3006 ,  C22C38/105

Abstract: The present invention relates to a tool comprising a superhard part comprising a polycrystalline diamond (PCD) or a cubic boron nitride (cBN) sintered compact bonded to a cemented carbide substrate and a a maraging steel part where the cemented carbide substrate and the maraging steel part parts are joined by brazing. The present invention also relates to the making of such tool. The tool provides a strong braze joint and a steel part that have an even hardness.