Patent ID: RE41646

Claim:
A method of making a cemented carbide body comprising wet mixing without milling of at least two different WC-powders with deagglomerated powders of other carbides and a binder metal such that the WC-powers WC- powders are coated with the binder phase, said WC-grains being deagglomerated before and after being coated with binder metal, the grains of the WC-powder being classified in at least two groups in which a group of smaller grains has a maximum grain size a max and a group of larger grains has a minimum grain size b min , each group containing at least 10% of the total amount of WC grains wherein b min −a max >0.5 mm μm , the variation in grain size within each group being >1 μm, drying said mixture, pressing to a desired shape and sintering said pressed bodies.