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Cubic boron nitride particles, the cubic boron nitride (CBN) grinding wheel, stick, in the general wheel surface, only a thin layer, the abrasive toughness, hardness, durability is corundum class grindstone 100 times, the most suitable for the processing of high hardness, tack large, high-temperature, high strength, low thermal conductivity, the hard grind steel and high-speed or ultra-high-speed grinding. Plays a complementary role in its range of applications and synthetic diamond. Diamond grinding wheels grinding carbide and non-metallic materials, has a unique effect, but when grinding steel material, especially grinding specialty steel, the effect is not significant. Cubic boron nitride grinding wheel is the efficiency of the steel is higher than corundum class wheels nearly a hundred times, five times higher than diamond wheel, but not as diamond grinding brittle materials. Cubic boron nitride grinding wheel selection and the selection of the diamond grindstone similar. However, in the selection of binding agent, most resin binder, followed by electroplating, metal binding agent. Vitrified CBN grinding wheel is mainly used for the grinding of black metal titanium alloys, high-speed steel, malleable iron and other difficult to machine, resin bond CBN grinding wheel suitable for grinding ferromagnetic material, is the ideal choice for steel processing. The concentration of CBN grinding wheel generally choose between 100% to 150% more economical reasonable, it does not need a special cutting with ordinary cutting fluid, liquid.