Mechanical processing refers to the process of changing the shape size or performance of the workpiece through a mechanical equipment. According to the difference in processing mode, it can be divided into cutting processing and pressure processing; The production process of machine refers to the whole process of making products from raw materials or semi-finished products. For machine production, it includes transportation and preservation of raw materials, preparation for production, manufacturing of blank, processing and heat treatment of parts, assembly, debugging of products, painting and packaging, etc. The content of production process is very extensive. Modern enterprises use the principles and methods of system engineering to organize and guide production, and regard the production process as a production system with input and output.