Methods and advantages of precision parts processing

Mechanical manufacturing skills have been rapidly developed in terms of improving accuracy and productivity. In terms of improving productivity, increasing the degree of automation is the direction that countries are striving to develop. According to the mechanism and characteristics of machining methods, precision machining can be divided into four categories: tool cutting, abrasive machining, special machining and compound machining. With the development of machining technology, many new machining mechanisms have emerged. Therefore, in precision parts machining, Especially in the micro-processing, it must be carried out according to the forming mechanism and characteristics of the part. It is divided into three categories: removal processing, combined processing and deformation processing. Removal processing is also called separation processing. It uses force, heat, electricity, light and other processing methods to remove part of the material from the workpiece, such as cutting, grinding, electrical processing, etc. . Combined processing is the use of physical and chemical methods to attach and weld a layer of different materials on the surface of the workpiece, such as electroplating, vapor deposition, oxidation, carburization, bonding, welding, etc.; deformation processing is the use of force, heat, molecular motion and other means to make the workpiece Deformation occurs, changing its size, shape and function, such as casting, forging, etc. It can be seen that the concept of processing has broken the traditional removal processing methods, and has the characteristics of accumulation, growth, and deformation. At the same time, it emphasizes the appearance processing and forms the appearance processing skills. Compared with the chip-free process, the cutting process of precision parts has the advantages of high material removal rate and good economy, for example, compared with the laser plasma process. This is because this technology can only achieve a high material removal rate with a large amount of energy. On the other hand, there are still questions about whether the processed workpiece can reach the size and shape accuracy requirements. Chipless pressure machining is mainly used for mass production, and often requires subsequent cutting to obtain the final qualified shape of the workpiece. Therefore, the first point of machining is to make the workpiece reach a higher precision. Precision parts processing are widely used, especially With the development trend of small batch production, the requirements for the shape and dimensional accuracy of workpieces are getting higher and higher, which has opened up new and more extensive fields for precision parts processing. The use of lathes naturally requires various turning processes, but it should also be noted that the machining processes such as drilling, milling, grinding, and gear cutting can be completed on one lathe (process integration). This is the machining method of the compound machine tool of the turning and milling machining center developed now.