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1. Superabrasive grinding wheels made of diamond or cubic boron nitride (CBN) abrasives have been widely used in all aspects of grinding because of their excellent grinding performance. Diamond cut off disc for stainless steel  are special effects tools for grinding hard and hard materials such as cemented carbide, glass, ceramics and precious stones. In recent years, with the rapid development of high-speed grinding and ultra-precision grinding technology, higher requirements have been placed on the grinding wheel. The grinding wheel of ceramic and resin bonding has been unable to meet the production needs. The metal bond grinding wheel has its bonding strength. High performance, good formability, long service life and other significant characteristics have been widely used in production. The metal bond diamond grinding wheel is mainly of two types of sintering and electroplating depending on the manufacturing method. In order to give full play to the role of super-hard abrasives, foreign countries began to develop a new type of grinding wheel by high-temperature brazing process from the early 1990s, namely single-layer high-temperature brazing super-hard abrasive grinding wheel. At present, this kind of grinding wheel is still in the research and development stage. glass, ceramics and precious stones. In recent years, with the rapid development of high-speed grinding and ultra-precision grinding technology, higher requirements have been placed on the grinding wheel. The grinding wheel of ceramic and resin bonding has been unable to meet the production needs. The metal bond grinding wheel has its bonding strength. High performance, good formability, long service life and other significant characteristics have been widely used in production. The metal bond diamond grinding wheel is mainly of two types of sintering and electroplating depending on the manufacturing method. In order to give full play to the role of super-hard abrasives, foreign countries began to develop a new type of grinding wheel by high-temperature brazing process from the early 1990s, namely single-layer high-temperature brazing super-hard abrasive grinding wheel. At present, this kind of grinding wheel is still in the research and development stage.


2 sintered diamond wheel

Sintered metal bond grinding wheel is mostly made of bronze and other metals as a bonding agent. It is made by high-temperature sintering method. It has high bonding strength, good formability, high temperature resistance, good thermal conductivity and wear resistance, long service life and can withstand large load. Since the grinding wheel inevitably has shrinkage and deformation during the sintering process, the grinding wheel must be shaped before use, but the dressing of the grinding wheel is difficult. At present, the grinding wheel rolling method commonly used in production not only takes time and labor in dressing, but also the diamond particles fall off during the dressing process, the dressing wheel itself consumes a lot, and the shaping precision is low. In recent years, scholars from various countries have carried out research work on the application of special processing methods to trim metal bond diamond grinding wheels, mainly including electrolytic dressing method, electric spark trimming method and composite trimming method. Electrolytic dressing method is fast, but the shaping precision is not high; the electric spark dressing method has high precision, can be shaped and sharpened, but the shaping speed is slow; the composite dressing method has electrolytic sparking composite trimming method and mechanical chemical compound trimming method. Etc., the dressing effect is better, but the system is more complicated, so the dressing problem of the sintered diamond wheel is still not well solved. In addition, because the manufacturing process of the grinding wheel determines that the surface topography is random, the geometry and distribution of each abrasive grain and the height of the cutting edge are inconsistent, so only a few high cutting edges are cut to the workpiece during grinding, limiting Further improvement in grinding quality and grinding efficiency.