First of all, the parts of hardware materials can be processed by hardware, such as mechanical parts and hardware products can be punched. Common methods for stamping workpieces or blanks. The external force is exerted on the sheet, strip, pipe and profile by the stamping die to make them plastic deformation or separation, so as to obtain the forming processing method of the shape and size of the workpiece, and to punch the workpiece. The processing of precision metal stamping parts is a forming processing method that relies on the press and mold to exert external force on the plates, strips, pipes and profiles to make them plastic deformation or separation, so as to obtain the required shape and size of the workpiece (stamping parts). Stamping and forging belong to plastic processing (or pressure processing), collectively referred to as forging. Metal stamping blanks are mainly hot rolled steel plates, cold rolled steel plates and steel strips.
Processing of precision metal stamping parts
After stamping, the parts have light weight and good stiffness. After plastic deformation of sheet metal, the internal structure of metal has been improved, so that the strength of stamping parts has been improved. In the stamping process, because the material surface is not damaged, the surface quality is good, and the appearance is smooth, it provides convenient conditions for surface painting, electroplating, phosphating and other surface treatment. The reasonable blank preparation method can be directly used in mechanical manufacturing, such as profile, casting, forging, stamping and welding. The selection of blanks is related to the specific technical conditions of production, and generally depends on the production batch, material properties and processing possibilities. In order to improve stamping deformation and part quality, materials should have good plasticity, small bending strength ratio, large plate thickness directivity coefficient, small plate plane directivity coefficient, and small material yield strength to elastic modulus ratio.
