公开(公告)号：US20210138556A1

公开(公告)日：2021-05-13

申请号：US16487132

申请日：2018-02-27

Applicant: SANDVIK INTELLECTUAL PROPERTY AB

Inventor： Leif AKESSON ,  Anders STENBERG ,  Carl-Johan MADERUD ,  Susanne NORGREN ,  Elias FORSSBECK NYROT ,  Ake OSTLUND ,  Jan ENGQVIST

IPC: B23B27/14 ,  C23C28/04

Abstract: A coated cutting tool of a cemented carbide substrate made of WC, a metallic binder phase and a gamma phase has a well distributed gamma phase and a reduced amount of abnormal WC grains. Further, the coated cutting tool is provided with a CVD coating of TiCN and an α-Al2O3 layer, wherein the α-Al2O3 layer exhibits a texture coefficient TC(0 0 12)≥7.2 and wherein in the ratio I(0 0 12)/I(0 1 14)≥1. The coated cutting tool has an increased resistance against plastic deformation. whilst maintaining toughness.

公开(公告)号：US20210140018A1

公开(公告)日：2021-05-13

申请号：US16487128

申请日：2018-02-27

Applicant: SANDVIK INTELLECTUAL PROPERTY AB

Inventor： Leif AKESSON ,  Anders STENBERG ,  Carl-Johan MADERUD ,  Susanne NORGREN ,  Elias FORSSBECK NYROT

IPC: C22C29/08 ,  B22F7/06 ,  C22C29/00

Abstract: A cutting tool made of a cemented carbide substrate of WC, a metallic binder phase and gamma phase is provided. The cemented carbide has a well distributed gamma phase and a reduced amount of abnormal WC grains. The cutting tool has a more predicted tool life and an increased resistance against plastic deformation.