Reasonable mold design. In the progressive die, the arrangement of the blanking sequence may affect the accuracy of stamping forming. For the blanking of small parts of stamping parts, generally, a larger area of punching is arranged first, and then a smaller area of punching is arranged to reduce the influence of the punching force on the forming of the stamping part. 2. Hold down the material. Overcome the traditional mold design structure, open the material gap on the discharge plate (that is, when the mold is closed, and the material can be compressed. The key forming part, the discharge plate must be made into a block structure to facilitate the solution of long Time stamping causes abrasion (compression) loss at the pressing part of the discharge plate, and the material cannot be pressed. 3. Add strong pressure function. That is to increase the size of the press part of the unloading insert (normal unloading insert thickness H+0.03mm) to increase the pressure on the material on the die side, so as to prevent the stamping part from turning over and twisting during punching.