What is going on when the stamping part is stretched on both sides?

The stamping and stamping process can be roughly divided into two categories: separation process and forming process (also divided into bending, deep drawing, and forming). The separation process is to separate the stamping parts and the blanks along a certain contour line in the stamping process, and the quality of the separated sections of the stamping parts also meets certain requirements; the forming process is to plastically deform the stamping blanks without breaking. And into the required shape of the finished product, but also meet the requirements of dimensional tolerances. According to the temperature conditions at the time of stamping, there are two methods of cold stamping and hot stamping. This depends on the strength, plasticity, thickness, degree of deformation, and equipment capabilities of the material, as well as the original heat treatment state and end use conditions of the material. Stainless steel is divided into a variety of materials, and its performance varies.