Patent · US Active

Cutting tool with multi-layer coating

US9028954B2 · kind B2 · utility

1Cited by

7References

20Claims

0Family size

Assignee

WALTER AG · DE

Inventor

Veit Schier · Echterdingen, DE

Key dates

Filing date	Aug 1, 2011
Grant date	May 12, 2015
Priority date	—
Expiry date	Jan 8, 2032

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/265
WIPO fieldSurface technology, coating
WIPO sectorChemistry

Abstract

The invention relates to a cutting tool comprising a main part and a multilayer coating applied thereon. A first layer A made of a hard material is applied on the main part, said hard material being selected from titanium aluminum nitride (TiAlN), titanium aluminum silicon nitride (TiAlSiN), chromium nitride (CrN), aluminum chromium nitride (AlCrN), aluminum chromium silicon nitride (AlCrSiN), and zirconium nitride (ZrN), and a second layer B made of silicon nitride (Si3N4) is applied directly over the first layer A.

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