The abrasives industry is a basic industry, but mechanical processing always occupies an extremely important position. As far as abrasives are concerned, three improvements and breakthroughs are of great significance.
First, the physical structure of the abrasive is improved, such as increasing the number of abrasive particles acting on the workpiece per unit time, increasing the uniform length of the grinding, and increasing the grinding contact surface, all of which change the amount of grinding per unit time and effectively improve the efficiency. .
Second, the application of super-hard abrasives mainly refers to the application of using super-hard materials such as metal powders, metal oxides or CBN as fillers and resins, ceramics or metal bonds to make abrasives. At present, the high-precision and high-efficiency grinding effect brought by super-hard abrasives has been widely recognized.
Third, new types of abrasives have emerged, such as micron-level polycrystalline ceramic microcrystalline abrasives, spherical shell abrasives containing fine diamond abrasive particles, and polyester film belts for ultra-precision polishing. The characteristics of these new types of abrasives make the advantages of grinding processing vividly demonstrated.
Throughout the development of the grinding field, the future grinding process will put forward higher requirements for abrasives. Judging from the current status quo, superhard products can meet these new grinding needs. For example, CBN abrasives have good thermal stability, high hardness, good wear resistance and other characteristics, so the grinding tools have high linear speed, high grinding efficiency and long tool life, especially suitable for processing high-speed steel, bearings Black metal materials such as steel, stainless steel, and chilled cast iron. In addition, satisfying various needs of ceramic bond grinding wheels, high-speed grinding wheels with large pores, and different abrasive grinding wheels with different processing surfaces, diamond saw blades, etc. will expand the application range with the improvement of technology and become the mainstream products of grinding processing.
