For different workpiece materials and different processing requirements, different CBN grinding wheels should be selected; even if the same workpiece material is ground, the grinding ratio of different brands of grinding wheels may differ by 2 to 5 times, so a suitable grinding wheel must be selected.

Diamond grinding wheels are abrasive tools for grinding non-metallic materials with high hardness and brittleness such as cemented carbide, optical glass, ceramics, gems and stones. However, because diamond is easily carbonized at 700℃~800℃, it is not suitable for grinding steel. material;

The hardness of CBN grinding wheel is slightly lower than that of diamond, but its thermal stability is good (can withstand high temperatures of 1300℃~1400℃). It does not decompose at high temperatures like diamond, that is, oxidizes and graphitizes, and is chemically inert to iron group elements. , has high thermal conductivity (46 times that of corundum), and the grinding wheel made with it has a long service life (up to dozens to hundreds of times that of corundum grinding wheel). It is an ideal alternative to corundum grinding wheel for grinding hardened steel, high-speed tool steel, and bearings. Grinding tools for metal materials with high hardness and toughness such as steel, stainless steel, heat-resistant steel and titanium alloy.