Patent · US Active

CVD coated cutting tool

US11213893B2 · kind B2 · utility

0Cited by

4References

15Claims

0Family size

Assignee

Sandvik Intellectual Property AB · SE

Inventors

Jan Engqvist · Uppsala, SE
Erik Lindahl · Solna, SE

Key dates

Filing date	Jun 20, 2017
Grant date	Jan 4, 2022
Priority date	—
Expiry date	Sep 16, 2038

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB23B2228/10
WIPO fieldSurface technology, coating
WIPO sectorChemistry

Abstract

A coated cutting tool includes a substrate and a coating of one of more layers. The coating includes a layer of α-Al2O3 of a thickness of 1-20 μm deposited by chemical vapour deposition (CVD). The α-Al2O3 layer exhibits an X-ray diffraction pattern and wherein the texture coefficient TC(h k 1) is defined according to the Harris formula, wherein 1<TC(0 2 4)<4 and 3<TC(0 0 12)<6.

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