Cemented carbide article and method for making same

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United States of America Patent

PATENT NO 9297054
APP PUB NO 20150050512A1
SERIAL NO

13980635

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Abstract

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The present invention relates to a cemented carbide article comprising a core of metal carbide grains and a binder selected from cobalt, nickel, iron and alloys containing one or more of these metals and a surface layer defining an outer surface for the article, the surface layer comprising 5 to 25 weight percent of tungsten and 0.1 to 5 weight percent carbon, the balance of the surface layer comprising a metal or alloy selected from the binder metals and alloys and the surface layer being substantially free of carbide grains as determined by optical microscopy or SEM. A method for the production of a cemented carbide article is also provided.

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Patent Owner(s)

Patent OwnerAddress
ELEMENT SIX GMBHBURGHAUN

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Konyashin, Igor Yurievich Huenfeld, DE 16 53
Lachmann, Frank Friedrich Burghaun, DE 37 350
Ries, Bernd Heinrich Huenfeld, DE 51 375

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