Problems existing in stamping

The dies used in stamping process are generally special, and sometimes a complex part needs several sets of dies to be processed and formed, which has high manufacturing accuracy and high technical requirements and belongs to technology-intensive products. Therefore, only mass production of stamping parts can fully reflect the advantages of stamping and obtain better economic benefits.

2. Security issues

There are also some problems and shortcomings in stamping. Mainly manifested in the noise and vibration produced by stamping, and the safety accidents of operators occur from time to time. However, these problems are not entirely due to the stamping process and the die itself, but mainly due to the traditional stamping equipment and backward manual operation. With the progress of science and technology, especially the development of computer technology and electromechanical integration technology, these problems will be solved as soon as possible and perfectly.

3, high strength steel stamping

Nowadays, high-strength steel and ultra-high-strength steel have realized the lightweight of vehicles and improved the collision strength and safety performance of vehicles, so they have become an important development direction of automotive steel. However, with the improvement of plate strength, the traditional cold stamping process is easy to crack in the forming process, which can not meet the processing requirements of high-strength steel plate. At present, under the condition that the forming conditions cannot be met, the hot stamping technology of ultra-high strength steel plate is being studied step by step internationally. This technology is a new technology integrating shape, heat transfer and microstructure transformation. It is mainly a forming process by using the characteristics of increasing plasticity and decreasing yield strength of metal plates in high temperature austenite state. However, hot forming requires in-depth study of process conditions, metal phase transformation and CAE analysis technology. At present, this technology is monopolized by foreign manufacturers, and its domestic development is slow.