How did the grinding chips produce during grinding processing

Grinding is a long -established and widely used metal cutting method. In China, it is currently mainly used in the processing of hard materials that are difficult to cut in traditional tools and parts with high accuracy and high surface quality requirements. With the emergence and application of a large number of new materials, and the new requirements of parts accuracy and quality brought by the development of science and technology, the growth rate of grinding processing applications far exceeds other traditional processing methods. In foreign countries, grinding processing has been widely used in the rough processing, replacing traditional cutting methods in many ways, and the number of grinding machines has also reached about 60 % of the total number of machine tools. During the grinding processing, not only the size, shape and distribution of the grinding particles plays an important role in processing. Often when the tough metal of the processing toughness, the sharp blocking and passivation of the grinding wheel occurs, resulting in the premature life of the grinding wheel. The adverse effects of this, the process of studying the abrasive of the grinding wheel is necessary

Formation of grinding chips

The grinding process is a complex multi -factor and multi -variable process. The purpose is to obtain higher surface quality and accuracy by removing a certain amount of workpiece materials. The grinding wheel is a loose body made of abrasives and binding agents through pressure, drying, and sintering. The single abrasive particle in which is a tiny cutting blade with a large negative front angle and a blunt round radius. The high -speed abrasive particles cut into the workpiece after slipping and plowing.

The cutting layer material has a significant short and thin crumbs formed by the sliding surface of the cutting surface. These abrasives are heated to a high temperature in the grinding area (such as the medium -carbon steel material can reach 1200K), and then it will Oxidation and melting, then solidified into a particle sphere, and there are some fork branches on the sphere. This kind of ball -shaped abrasive is a major form of abrasive. When grinding stainless steel, through scanning electronic microscopes, a large number of abrasives are found. Of course, it is accompanied by straps, nodular abrasives and ashes. Many of these abrasives will be filled in the wheel pores and attached to the abrasives. Cause the block of the wheel, cause the grinding accuracy to decrease, burn the workpiece, and shorten the life of the wheel. Due to the better control of the ceramic binding agent, the adhesive power of the abrasive layer and the roadbed is very good, and the probability of the abrasive blockage of the ceramic binding agent diamond grinding wheel is very small. In today's mechanical processing, ceramic combined diamonds play an important role.