Stamping process is an advanced processing method with high production efficiency, less chips or no cutting. It is characterized by easy automation by means of stamping die and stamping equipment, high productivity, simple operation, high material utilization rate, low cost of batch or batch production and manufacturing, convenient mechanization and automation of production process, certain machining accuracy and meeting the requirements of interchangeability. In modern industrial production, stamping technology has become an indispensable metal processing method. For example, the stamping process of stainless steel plate plays an important role in the production of stainless steel water tanks in water tank factory. What are the main processes of stamping process? (1) separation process: the process of separating or partially separating a part of a plate or blank from another part, including cutting and stamping. Shearing: cut off the plate with trimming to separate it along the unclosed periphery.

Blanking: blanking-the workpiece is completely separated from the sheet along the closed contour, and the punched part is the workpiece; Punching-the waste is completely separated from the workpiece along the closed contour, and the washed part is waste; Trimming-cutting off the excess material at the edge of the hollow workpiece obtained by stretching to make it have a certain neat shape. (2) Deformation process: the process of changing part or all of the geometric shapes of slab, block or blank (that is, semi-finished products between stamping processes), including bending, stretching, forming, cold extrusion and other processes. Bending: bending the flat blank so that the plane shapes cross into a solid shape. Drawing: pressing a flat blank into a hollow part with the required shape, or further changing the shape and size of the hollow part. Forming: forming-finishing and deforming the pressed parts obtained by stamping to obtain the precise shape and size of the workpiece; Necking: reducing the diameter of the open end of the hollow blank or pipe to obtain a braided workpiece; Flanging-punching the hole in the blank or the bottom hole in the hollow workpiece into a flange or other vertical edge with larger aperture; Local forming-pressing the flat blank into waves. Cold extrusion: the metal is extruded in the mold cavity to produce plastic deformation, and the blank is turned into a part with the required shape, size and certain performance.