5, grinding performance, good surface quality. CBN abrasive long-term to keep the the abrasive micro blade sharp, to make workpiece machining accuracy and surface roughness values are to achieve the desired results, so the durability of the workpiece can be increased by 10% to 30% . So even if the bulk of the workpiece will always get high shape accuracy and consistency. CBN grinding wheel is able to obtain high dimensional accuracy and low surface roughness of the machined surface is not easy to produce cracks and burns, the residual stress is small. Machined surface quality is improved, and generally no cracks, not easy to burn, and the compressive residual stress can be obtained, significantly improve workpiece fatigue strength, normally, the durability of the workpiece by grinding can be improved by 30-50%. 6, abrasion resistance, long life. CBN Wheels up to 3500-5500, a hundred times higher than ordinary corundum grinding wheel is 3-5 times higher than the Diamond wheel. 7, environmental pollution, energy saving. Much powder dust. 8, high efficiency, and overall good economic returns. Sharp grinding, grinding force long, CBN wheel dressing cycle, trimming less, to replace long time; long life cycle, grinding ratio, getting a better economy, use shape retention, without regular replace the grinding wheel and wheel dressing, saving time, improving labor conditions conducive to the machining operation. CBN is not suitable for grinding hard alloy and non-metallic hard materials. Grinding under high temperature, CBN case of alkaline aqueous chemical reactions occur, CBN wheel at 300 ° C alkaline solution will decompose in boiling water, can trace decomposition abrasive crystalline result will be destroyed, so when grinding. can only use the oil-based coolant, but not to water-based coolants.
CBN hardness than ordinary abrasive. High hardness means cutting ability is stronger, sharper; CBN has a high abrasion resistance, which means it is more difficult than conventional abrasive wear; ability to keep the abrasive shape CBN as one of the main features of the high-performance abrasive; CBN's The compressive strength is high, which means that when used in harsh conditions it can maintain the particles is complete and easily broken; CBN has a good thermal conductivity can be achieved, when grinding cold cutting.Diamond wheel 1, high hardness, high toughness, cubic boron nitride (CBN) is second only to diamond in hardness of human synthetic superhard material is much higher than normal corundum and silicon carbide abrasive, and thus has a better cutting ability, the more sharp. 2, high temperature resistance, good thermal stability. The cubic boron nitride can withstand a high temperature of 1250-1350 degrees Celsius, even higher than the diamond heat resistance of 800 degrees Celsius; sticky crumbs phenomenon appears in the grinding and cutting ferrous materials, not, in the grinding of hardened steel, high vanadium high speed metal material such as steel, aluminum, high-speed steel is more sensitive to the grinding temperature is ideal wheel. 3, chemically inert. CBN Wheels is not easy to produce a chemical reaction and iron-group elements, so for a variety of high-speed steel, tool steel, die steel, high alloy hardened steel, chrome steel, nickel alloys, powder metallurgy steels and high temperature alloys and other high-temperature, high hardness grinding of the material of low thermal conductivity is very appropriate. 4, good thermal conductivity. Corundum grinding wheel CBN thermal conductivity up to several times to a hundred times, and thus be able to grinding heat quickly exported, reducing workpiece thermal deformation. A low thermal conductivity material grinding is very appropriate. The various spray (welding) Material: nickel-based, iron-based, such as; cast iron class materials: vanadium - titanium, cast iron, high-phosphorus iron, chilled cast iron; titanium alloy class: as TC4.