Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Ove Alm0
Ake Ostlund0
Mats Waldenstrom0
Date of Patent
September 7, 2010
Patent Application Number
11484834
Date Filed
July 8, 1997
Patent Primary Examiner
Patent abstract
As there is disclosed a cemented carbide body comprising WC with an average grain size of <10 μm in a binder phase. In the cemented carbide body the WC grains can be classified in at least two groups in which a group of smaller grains has a maximum grain size amax and a group of larger grains has a minimum grain size bmin and each group contains at least 10 % of the total amount of WC grains. According to the invention bmin−amax>0.5 μm and the difference in grain size within each group is >1 μm.
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