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.

公开(公告)号：WO2022129133A1

公开(公告)日：2022-06-23

申请号：PCT/EP2021/085834

申请日：2021-12-15

Applicant: AB SANDVIK COROMANT

Inventor： ULITZKA, Tim ,  TILLMANN, Wolfgang ,  DAHL, Leif

IPC: B23K1/00 ,  B23K1/008 ,  B23K35/30 ,  B23K35/02 ,  C23C28/04 ,  C04B37/02 ,  B23K101/20

Abstract: The present invention relates to a tool comprising a cemented carbide part (2) and a maraging steel part (1) wherein the two 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.

公开(公告)号：WO2023083963A1

公开(公告)日：2023-05-19

申请号：PCT/EP2022/081470

申请日：2022-11-10

Applicant: AB SANDVIK COROMANT

Inventor： DAHL, Leif ,  ULITZKA, Tim

IPC: B23K1/00 ,  B23K1/008 ,  B23K31/02 ,  B23B27/14

Abstract: The present invention relates to a cutting tool insert comprising a carrier body (A) made of maraging steel comprising at least one rake face and at least one flank face and at least one pocket and at least one cutting element (B) situated in said at least one pocket. The cutting element comprises at least one cutting edge (C) and can be made of any material known in the art of cutting. The cutting tool insert further comprises a braze joint, joining said carrier body and said at least one cutting element where the braze joint comprises Ti and where the braze joint comprises a Ti containing joining layer with a thickness of between 0.03 and 5 μlm adjoining to the cutting element.

公开(公告)号：WO2023020986A1

公开(公告)日：2023-02-23

申请号：PCT/EP2022/072751

申请日：2022-08-15

Applicant: AB SANDVIK COROMANT

Inventor： DAHL, Leif ,  ULITZKA, Tim

IPC: B23K1/00 ,  B23K31/02

Abstract: The invention relates to a method of making a tool comprising a joining a maraging steel joining partner (1) and a cemented carbide joining partner (2) by brazing. The present invention also relates to a tool made according to this method. The method comprising depositing a Ni coating onto the maraging steel part prior to applying the filler material comprising at least 70wt% Cu. The braze joint shows excellent shear strength.