TiAlN-coated tool

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United States of America Patent

PATENT NO 9476114
APP PUB NO 20150211105A1
SERIAL NO

14417274

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Abstract

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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, TixAlyN where x+y=1, which layer can contain, according to the process, up to 5% by weight of further metals, characterized in that the TixAlyN layer is a multi-coat substructure having a plurality of periodically alternating Tix(A)Aly(A)N coats (A) where x(A)+y(A)=1 and Tix(B)Aly(B)N 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)).

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Patent Owner(s)

Patent OwnerAddress
WALTER AG72072 TÜBINGEN

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Albers, Ulrich Starzach-Börstingen, DE 4 18
Schier, Veit Leinfelden-Echterdingen, DE 39 188

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