Tungsten carbide inserts are replaceable and usually indexable bits of cemented carbide used in machining steels, cast iron, high temperature alloys, and nonferrous materials. Tungsten carbide indexable inserts allow faster machining and leave better finishes on metal parts. Tungsten carbide indexable inserts can withstand higher temperatures than high speed steel tools.
Tungsten carbide indexable inserts are composed of a metal matrix composite where carbide particles act as the aggregate and a metallic binder serves as the matrix. The process of combining the carbide particles with the binder is referred to as sintering. During this process, the binder eventually will be entering the liquid stage and carbide grains remain in the solid stage. The binder is embedding cementing the carbide grains and thereby creates the metal matrix composite with its distinct material properties. The naturally ductile metal binder serves to offset the characteristic brittle behavior of the carbide ceramic, thus raising its toughness and durability. Such parameters of carbide can be changed significantly within the carbide manufacturer's sphere of influence, primarily determined by grain size, cobalt content, dotation, and carbon content.
Our products provide optimum performance for a broad range of operations, including contouring, facing, slotting, and ramping. Inserts feature a unique and highly developed combination of substrate and coating configurations that can handle any workpiece material in any machining environment. Dapra is a leading manufacturer of cutting tools for the automotive, die and mold, machining, medical and aerospace industries.
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