What is stamping and what are the applications of stamping!

What is stamping and what are the applications of stamping!

What is stamping?

Stamping is a forming process in which external forces are applied to sheets, strips, pipes, and profiles by a press and mold, causing plastic deformation or separation, in order to obtain the desired shape and size of the workpiece (stamped part).

The body, chassis, fuel tank, radiator, boiler drum, container shell, and iron core silicon steel sheets of motors and electrical appliances of automobiles are all processed by stamping. There are also a large number of stamped parts in products such as instruments, household appliances, bicycles, office machinery, and household utensils.

According to the stamping processing temperature, it is divided into hot stamping and cold stamping. The former is suitable for processing sheet metal with high deformation resistance and poor plasticity; The latter is carried out at room temperature, which is a commonly used stamping method for thin plates.

Sheet metal, molds, and equipment are the three essential elements of stamping processing.

Sheet metal: The surface and intrinsic properties of sheet metal used for stamping have a significant impact on the quality of stamped products.

Six requirements for stamping materials

① Accurate and uniform thickness.

② The surface is smooth, without spots, scars, scratches, surface cracks, etc. Prevent the generation of waste products.

③ The yield strength is uniform without obvious directionality. To reduce the occurrence of defective or scrap products

④ High uniform elongation. To prevent uneven deformation.

⑤ The yield to strength ratio is low. In order to improve the accuracy of bent parts.

⑥ Low work hardening properties. To prevent deformation in the future

Mold: The accuracy and structure of the mold directly affect the forming and accuracy of stamped parts. The cost and lifespan of mold manufacturing are important factors affecting the cost and quality of stamped parts.

equipment

According to transmission structure: manual stamping machine, mechanical punching machine, hydraulic punching machine, pneumatic punching machine, high-speed mechanical punching machine, CNC punching machine

According to machining accuracy: ordinary punching machine, precision punching machine

According to the scope of use: ordinary punch press, specialized punch press

Processing characteristics

1. Stamping processing has high production efficiency, convenient operation, and is easy to achieve mechanization and automation.
2. The stamping quality is stable, the interchangeability is good, and it has the characteristics of "identical".
3. The strength and stiffness of stamping are both high.
4. The cost of stamped parts is relatively low.