Patent ID: 6254658
Filing Date: 2001-07-03
Classification: B22F,C22C

Abstract:
A cutting tool comprising a cemented carbide alloy, the cemented carbide alloy containinga binding phase anda dispersing phase in the binding phase, whereinthe binding phase comprises a first Co-based alloy containing W, C, and V;the dispersing phase has an average particle diameter of 1 .mu.m or less and includesa tungsten carbide matrix andparticles comprising a second Co-based alloy with particle diameters of 100 nm or less dispersed in the tungsten carbide matrix;the tungsten carbide matrix forms 72 to 90 percent by area of a cross-section of the cemented carbide alloy;the second Co-based alloy contains W, C, and V; andthe cemented carbide alloy comprises8 to 13 wt % Co and0.1 to2wt % V.