Grinding is the finishing and precision machining of parts. It has the following features.

      1. Grinding with high dimensional accuracy The research uses a very fine powder to remove a thin layer of metal at low speed and low pressure. The heat generated during the grinding process is small, the deformation of the workpiece is also small, and the surface metamorphic layer is very slight, so that a highly accurate surface can be obtained. Grinding accuracy can reach 0.01Um.

      2. High precision of surface shape Grinding has a small amount of cutting, complex movement, and is not affected by the movement accuracy, so it can obtain high shape accuracy. The roundness of the sphere can be up to o. Yangsi, cylindrical cylindricity up to o. T4e On the other hand, since the amount of grinding is small, the original positional error cannot be completely corrected, so grinding cannot improve the positional accuracy of the part.the original positional error cannot be completely corrected, so grinding cannot improve the positional accuracy of the part.

      3. There is a certain relative movement between the small part of the surface roughness and the lap, each trajectory does not overlap with the previous soft track, so the ridges on the surface of the part can be evenly removed and the surface roughness can be reduced. Grinding surface roughness can generally reach Rd. 01M.

      4. Improve the resistance of the surface of the part The surface roughness of the grinding is small and the friction coefficient of the surface is reduced. The effective contact area increases wear resistance.

      5. Improve the surface pouching strength of the parts The presence of compressive stress on the surface of the grinding surface helps improve the fatigue strength of the surface of the components.

      6. Good technicity Research equipment is simple and easy to manufacture: Grinding is not only suitable for single hand-manufacturing, but also suitable for batch mechanical production; Grinding can process steel parts, cast iron, various non-ferrous metals and non-gold shavings. For example, hard and brittle materials such as glass, ceramics, and diamonds can be studied.

      7. Wide range of applications Grinding is widely used in the processing of various precision parts in the modern industrial production. Various block gauges, optical glass, precision knives, semiconductor components, and precision mating surfaces all require grinding.