公开(公告)号：US11162161B2

公开(公告)日：2021-11-02

申请号：US16063841

申请日：2016-12-16

Applicant: SANDVIK INTELLECTUAL PROPERTY AB

Inventor： Leif Åkesson ,  Jose Luis Garcia ,  Kare Finneid

IPC: C22C29/08 ,  C22C1/05 ,  C22C29/06 ,  B23B27/14 ,  B22F5/00 ,  C23C16/32 ,  C23C16/34 ,  C23C16/40

Abstract: The present disclosure relates to a cutting tool of a cemented carbide substrate including WC and a binder phase having one or more of Co, Fe and Ni, wherein the cemented carbide also includes a finely dispersed eta phase of Me12C and/or Me6C carbides, where Me is one or more metals selected from W, Mo and the binder phase metals, wherein the substoichiometric carbon content in the cemented carbide is between −0.30 to −0.16 wt %. The disclosed cutting tool will achieve an improved resistance against comb cracks.