Sheet Metal Stamping is the process of pressing and forming sheet metal materials through molds to make parts or products that meet specific requirements. The process involves the use of large stamping machines with precision molds to apply pressure to the sheet metal to deform it into the desired complex three-dimensional shape. The key technical requirements for sheet metal stamping can be summarized as follows:

​

First, the importance of material selection: Sheet metal stamping parts are widely used in automobiles, heavy industry machinery, electronics and other fields, and in most cases to bear a large load, so the selection of materials is very important. Considerations: need to be based on the mechanical properties of sheet metal stamping parts requirements, production process requirements, environmental protection requirements and other comprehensive considerations. Common materials: common materials are cold-rolled plate, hot-rolled plate, stainless steel, aluminum plate, etc. Second, the design points to avoid sharp corners and cantilever safety factors: sheet metal external sharp corners, easy to cause operators or users to scratch their fingers; too long cantilever may also cause waste of sheet metal materials. Die factors: The sharp corners of the sheet metal correspond to the sharp corners on the die. The sharp corners on the die concave die are difficult to process. At the same time, it is very easy to crack during heat treatment. During punching, the sharp corners are easy to collapse and wear too quickly, resulting in a reduction in the life of the die. Punching size and spacing The corresponding punch size on the stamping die is small, the strength is low, and the die life is short. Bending design Bending height, radius and direction: When the bending height is too low, the bending is easy to twist and deform; In order to ensure the bending strength, the bending radius of the sheet metal should be greater than the minimum bending radius of the material; When bending, try to be perpendicular to the fiber direction of the material. Avoid bending interference and complex bending. Third, process characteristics Punching: including blanking, punching and other processes to ensure accurate extraction of materials. Forming: not only bending, but also including a variety of molding methods such as convex hulls and turn holes. It is necessary to choose the appropriate molding process according to the actual needs of the product. Four, equipment precision stamping machine: parameters such as pressure, punching frequency, and processing accuracy need to meet the requirements to ensure that the processed parts have stable performance indicators. Mold: The design and manufacture of the mold need to be fine to ensure the accuracy and quality of the stamped parts. Five, post-processing deburring: For the burrs generated by processes such as numerical control punching, post-processing deburring treatment is required to ensure the appearance quality of the product. Surface treatment: According to product requirements, surface treatment such as spraying, electroplating may be required. Six, quality control During the entire production process, strict quality control needs to be carried out to ensure that the various indicators of the product meet the requirements.