Kennametal Inc.

Kennametal Widia Produktions Gmbh & Co Kg

Doris Lenk

Volkmar Sottke

Hartmut Westphal

Hendrikus Van Den Berg

Yixiong Liu

Peter Rudolf Leicht

Mark S Greenfield

In one aspect, cutting tools are described having coatings adhered thereto. A coated cutting tool, in some embodiments, comprises a substrate and a coating adhered to the substrate, the coating comprising at least one composite layer deposited by chemical vapor deposition comprising an aluminum oxynitride phase and a metal oxide phase, the metal oxide phase including at least one oxide of a metallic element selected from Group IVB of the Periodic Table.

Coatings for cutting tools

The invention relates to a method for producing a coated substrate body by chemical vapor deposition at least on one layer made of a carbonitride of a metal of IVa-Vla-groups of the periodic table, wherein a monocyclic hydrocarbon is used in the gas atmosphere during the deposition, in addition to a nitrile. According to the invention, the thus produced coated substrate body has a high degree of hardness and is used, preferably, in cutting operations where the cutting speeds are &#x2267;250 m/min.

Method for producing a coated substrate body, substrate body comprising a coating and use of the coated substrate body

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Mulheim/Ruhr, Germany

Doris Lenk