Patent · US Active

Coated cutting tool

US12365970B2 · kind B2 · utility

0Cited by

1References

15Claims

0Family size

Assignee

AB Sandvik Coromant · SE

Inventors

Linus VON FIEANDT · Stockholm, SE
Raluca Brenning · Stockholm, SE
Jan Engqvist · Uppsala, SE
Andreas Blomqvist · Stockholm, SE
Erik HOLMSTROM · Huddinge, SE

Key dates

Filing date	Nov 22, 2021
Grant date	Jul 22, 2025
Priority date	—
Expiry date	May 26, 2042

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC22C29/08
WIPO fieldSurface technology, coating
WIPO sectorChemistry

Abstract

A coated cutting tool has a CVD coated and a substrate of a cemented carbide, wherein the metallic binder in the cemented carbide includes Ni. The CVD coating has an inner layer of TiN and a subsequent layer of TiCN. The C-activity relative to graphite in the metallic binder is lower than 0.15 and an average d electron value of the metallic binder is 7.00-7.43, wherein an interface between the substrate and the inner TiN layer is free of Ti-containing intermetallic phase.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.