What are the main stamping processes?

The surface and internal properties of the sheet metal used in Dongguan metal stamping parts have a great impact on the quality of the stamped products. The requirements for stamping materials are: precise and uniform thickness; smooth surface, no spots, no scars, no scratches, no surface cracks, etc.; uniform yield strength, no obvious directionality; high uniform elongation; low yield ratio; processing Low hardening. Compared with castings and forgings, stamping parts have the characteristics of thinness, uniformity, lightness and strength. Stamping can produce workpieces with stiffeners, ribs, undulations or flanges that are difficult to manufacture by other methods to improve their rigidity. Due to the use of precision molds, the precision of the workpiece can reach the micron level, and the precision is high, the specifications are consistent, and holes, bosses, etc. can be punched out. Cold stamping parts are generally no longer processed by cutting, or only a small amount of cutting processing is required. The precision and surface condition of hot stamping parts are lower than cold stamping parts, but still better than castings and forgings, and the cutting amount is less. Stamping is an efficient production method. Using compound dies, especially multi-station progressive dies, multiple stamping processes can be completed on one press (single-station or multi-station) to realize strip uncoiling and straightening. Fully automatic production from flattening, blanking to forming and finishing. The production efficiency is high, the working conditions are good, and the production cost is low. Generally, hundreds of pieces can be produced per minute. According to the process, stamping can be divided into two categories: separation process and forming process. The separation process is also called punching, and its purpose is to separate the stamping parts from the sheet along a certain contour line while ensuring the quality requirements of the separated section. The purpose of the forming process is to make the sheet metal plastically deform without breaking the billet to make a workpiece of the required shape and size. In actual production, multiple processes are often applied to one workpiece. Blanking, bending, shearing, deep drawing, bulging, spinning, and correction are the main stamping processes. Previous post: Main materials for making metal stamping dies