At the present time, the details are used in the engineering industry, high requirements are imposed. They mainly relate to the quality and compliance with the assembly technology. Often, mechanical methods are used to process parts. The mechanical processing of materials provides for cutting from the harvesting of layers through special tools. Ultimately, the detail acquires the necessary configuration, which corresponds to the sizes and surface properties specified in the drawing. To process parts by mechanically using machines, turning, drilling, boring, milling and grinding is used. These types of processing can be subjected to metal, plastic and plastics of any type. In the process of mechanical processing of plastics, it must be borne in mind that this material compared to metals has a higher elastic deformation produced under increased pressure. Mechanical processing of plastic requires the use of lower supply and high speeds. At the same time, all manipulations are carried out using tools made of high -carbon or high -speed steel. At the same time, in the case of plastics, heat treatment of parts under pressure is often used in accordance with forming technologies, casting or extrusion. After heat treatment, these materials are cooled by a stream of air. The most commonly used details in various mechanisms and equipment are bushings, cuffs and gears. Based on the fact that the sleeve performs important connecting functions, the cuffs belong to the main sealing devices, and the gears are used for various types of gears, during their manufacture to the technological process, special requirements are made.
