Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
April 20, 2010
Patent Application Number
12078140
Date Filed
March 27, 2008
Patent Primary Examiner
Patent abstract
According to the present invention there is now provided a body cemented carbide provided with at least one wear resistant layer, which body contains a toughness increasing surface zone. Increase in toughness is obtained due to the presence of a surface zone having increased WC grain size and/or increased Co content. The invention is most suitable for WC—Co cemented carbides.
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