Sheet metal has the characteristics of light weight, high strength, electrical conductivity (can be used for electromagnetic shielding), low cost, and good mass production performance. It has been widely used in electronic appliances, communications, automotive industry, medical equipment and other fields, such as in In computer cases, mobile phones, and MP3, sheet metal is an indispensable part. With the increasing application of sheet metal, the design of sheet metal parts has become a very important part of the product development process. Mechanical engineers must be proficient in the design skills of sheet metal parts, so that the designed sheet metal meets the requirements of the product. The function and appearance requirements can make the stamping die manufacturing simple and low cost.