The powder metallurgy technology, the high hardness of sintered metal is used more widely. One manufacturer has developed a nickel alloy with tungsten carbide powder, barium, the hardness can reach 53rc-60rc. The hardness of carbide particles in the nickel alloy matrix structure of up to 90rc.In the processing of these materials, blade coating hard alloy cutter wear quickly, the original edgeis smooth, this is due to slight vibration in the microstructure of super hard particles produced byaccelerated wear blades. In the processing of high hardness materials, hard alloy blade may also be affected by shear stress and broken.

The CBN blade provides a method of high hardness metal powder processing a very high efficiencycontaining tungsten carbide and barium, its advanced geometry can overcome the subtle vibration.A user process found using CBN alloy powder, cemented carbide blade than the best 2000 times longer. With a five blade plane with 200sfm cutter, cutting speed and feed speed of 0.007 inches per tooth machining high hardness workpiece, the ratio of EDM 75% faster.