The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 25, 2016
Filed:
Jul. 23, 2013
Walter Ag, Tübingen, DE;
Veit Schier, Leinfelden-Echterdingen, DE;
Ulrich Albers, Starzach-Börstingen, DE;
Walter AG, Tübingen, DE;
Abstract
Tool comprising a base body made of hard metal, cermet, ceramics, steel or high-speed steel and a single-layer or multi-layer anti-wear protective coating applied thereon in the PVD process, at least one layer of said anti-wear protective coating being a titanium-aluminum-nitride layer, TiAlN where x+y=1, which layer can contain, according to the process, up to 5% by weight of further metals, characterized in that the TiAlN layer is a multi-coat substructure having a plurality of periodically alternating TiAlN coats (A) where x(A)+y(A)=1 and TiAlN coats (B) where x(B)+y(B)=1, the Al concentration y(B) in coats (B) amounting at most to 70 at. % (y(B) 0.70) and the Al concentration y(B) in coats (B) being from 10 to 25 at. % higher than the Al concentration y(A) in coats (A) (y(B)=(y(A)+0.10) to (y(A)+0.25)).