Patent · US Active

Coated cutting tool

US12276016B2 · kind B2 · utility

0Cited by

0References

17Claims

0Family size

Assignee

WALTER AG · DE

Inventors

Veit Schier · Echterdingen, DE
Wolfgang Engelhart · Metzingen, DE

Key dates

Filing date	Dec 17, 2020
Grant date	Apr 15, 2025
Priority date	—
Expiry date	May 14, 2041

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC23C30/005
WIPO fieldSurface technology, coating
WIPO sectorChemistry

Abstract

A coated cutting tool includes a substrate with a coating including a (Ti,Al)N layer having an overall composition (TixAl1-x)N, 0.34≤x≤0.65. The (Ti,Al)N layer contains columnar (Ti,Al)N grains with an average grain size of from 10 to 100 nm. The (Ti,Al)N layer also includes lattice planes of a cubic crystal structure. The (Ti,Al)N layer shows a pattern in electron diffraction analysis, wherein there is a diffraction signal existing, which is shown as a peak (P) in an averaged radial intensity distribution profile having its maximum within a scattering vector range of from 3.2 to 4.0 nm−1, the full width half maximum (FWHM) of the peak (P) being from 0.8 to 2.0 nm−1.

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