CBN is really a new style of superhard material with ultra-high pressure and high temperature technology after synthetic diamond using . CBN and its particular products are mainly appropriate for precision grinding of tool steel, alloy steel, heat-resistant steel, stainless and other materials. Although the pricing is slightly greater than that of general abrasive grinding wheel products, thermal stability and chemical inertness can be better than general abrasive wheels, diamond wheels, etc. Vitrified bond CBN grinding wheels are routine used wheels during grinding process.

Grinding performance of grinding wheels is unique with diamond, CBN, silicon carbide and corundum abrasive. Diamond will be the hardest abrasive, but it’s not ideal used by steel material with large grinding toughness because of poor thermal stability. Silicon carbide wears rapidly as a result of its low hardness and chemical activity to iron group metals. Corundum is really a conventional abrasive used by grinding steel material, even so the hardness is pretty low, along with the hardness of corundum just isn't much greater than the hardness of tungsten carbide and vanadium carbide in hardened steel. In addition, the corundum wears relatively rapidly. The physical and chemical properties like hardness, thermal stability and chemical inertness of CBN are over other abrasives, and it could be the best abrasives to be employed for grinding steel material. Although CBN is more expensive, it's economically justified due to the range of advantages inside grinding process. Through the calculation of your number of economic indicators, the grinding price of vitrified bond CBN grinding wheels created from CBN compounded with metal powder and ceramic bond in a certain temperature may be saved greater than 70% versus the grinding tariff of corundum grinding wheel.

For vitrified bond CBN grinding wheel under high-speed rotary grinding, if people improve the feed speed and grinding depth of grinding wheel, it may significantly increase the efficiency of grinding; If it only should raise the speed of grinding wheel and does not improve the feed, it could improve the robustness of grinding wheel, the machining accuracy and surface roughness of workpieces. High-speed vitrified bond CBN grinding wheel has got the above a group of advantages, thus it gets the worldwide attention, and is particularly becoming a place of abrasive products R&D from the world.

Strength, specially the tensile strength, may be the key factor influencing high-speed vitrified CBN grinding wheel. If the strength will not be enough, it is going to easily cause rotary fracture within the process of wheel grinding, that may cause the damage to people and equipment. Therefore, the force analysis on grinding wheel under very fast rotating is rather important too.