What are the factors of forming precision stamping parts? Dongguan Hardware tells you

Compared with castings and forgings, precision 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. Precision stamping parts are not only required to have the required shape, but also to ensure product quality. The quality indicators of precision stamping parts are mainly thickness reduction rate, dimensional accuracy, surface quality, and physical and mechanical properties of the material after forming. So what are the factors that affect the forming quality of precision stamping parts? The main reasons that affect the size and shape accuracy of precision stamping parts are springback and distortion. Since plastic deformation is always accompanied by elastic deformation, springback will occur after unloading, resulting in a decrease in size and shape accuracy. The surface quality of precision stamping parts mainly refers to the scratches caused during the forming process. In addition to the unreasonable or uneven die gap and rough mold surface, the cause of scratches is often due to the adhesion of the material to the mold. For example, deep drawing of stainless steel is prone to this problem. The volume of metal does not change during plastic deformation. Therefore, during the elongation deformation, the thickness of the plate must be thinned, which will directly affect the strength of the precision stamping parts, so the precision terminals that require strength often have to limit their thinning rate.