The main characteristics and working process of stamping parts

In the process of working, stamping parts mainly rely on presses and molds to apply external force to plates, strips, pipes and profiles to cause plastic deformation or separation, so as to obtain the required shape and size of the workpiece (stamping). processing methods. Stamping and forging are both plastic processing (or pressure processing), collectively known as forging. The blanks to be stamped are mainly hot-rolled and cold-rolled steel plates and strips. 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 accuracy of the workpiece can reach the micron level, and the repeatability is high, the specifications are consistent, and holes, bosses, etc. can be punched out. 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, and the entire process from strip uncoiling, leveling, punching to forming and finishing can be achieved. Automatic production. 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. Stamping parts are mainly classified according to their process, and the process and forming process can be separated into two categories during operation. 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 surface and internal properties of the sheet metal used for stamping have a great influence on the quality of the stamped product. The stamping material is required to have a good thickness, uniformity, smooth surface, no spots, no scars, no scratches, no surface cracks, etc.; the yield strength is uniform and no obvious Directionality; high uniform elongation. Low yield ratio and low work hardening. The main features of stamping parts ⑴ Stamping parts are manufactured by stamping under the premise of low material consumption. The parts are light in weight and rigid. After the sheet material is plastically deformed, the internal structure of the metal is improved, making the stamping The strength of the pieces has been improved. ⑵The stamping parts have high dimensional accuracy, the same size as the mold parts, and good interchangeability. No further machining is required to meet general assembly and use requirements. ⑶In the stamping process, because the surface of the material is not damaged, the stamping parts have good surface quality and smooth and beautiful appearance, which provides convenient conditions for surface painting, electroplating, phosphating and other surface treatments. Related news: The characteristics of the main materials of stamping parts, the handling of common problems of stamping parts, the characteristics of scaffolding stamping parts and the importance of inspections