Sheet metal processing is a key technology that sheet metal technology personnel need to master, and it is also an important process for forming sheet metal products. It includes not only the traditional chisel cutting, cutting processing, stamping forming and other methods and process parameters, but also the structure and process parameters of various operating stamping molds, various equipment working principles and operation methods, as well Process. Metal plate processing is called sheet metal processing. Specifically, for example, the use of plate materials to make chimneys, iron barrels, fuel tank fuel pots, ventilation pipes, elbow size heads, sky round places, funnel shapes, etc. The main processes are cutting, bending buckle edges, bending forming, welding, riveting, etc., need There must be geometric knowledge. Sheet metal parts are sheet hardware, that is, processing parts can be processed by stamping, bending, stretching and other means. A general definition is parts that do not change thickness during processing. Correspondingly, processing parts, forged components, mechanical processing parts, etc. are processed. Cold Working of Metal usually refers to the cutting processing of metal, that is, using the cutting tool from the metal material (blank) or the workpiece to remove the excess metal layer, so that the workpiece can obtain a processing method with a certain shape, size accuracy and surface roughness. Such as turning, drilling, milling, planing, grinding, pulling, etc. In metal technology, corresponding to heating processing, cold processing refers to the processing process that produces plastic deformation at lower crystallization temperature, such as cold rolling, cold, cold, stamping, cold squeeze, etc. Cold processing deformation is high. While making metal forming, it can use processing hardening to improve the hardness and strength of the workpiece, but it will reduce the plasticity. Cold processing is suitable for metal parts with small processing section size and high processing size and surface roughness.