Mold problem
The molds used for stamping metal gaskets generally have special features. Sometimes a complex part needs several sets of molds to be processed and formed. The precision of mold manufacturing is high and the technical requirements are high. It is a technology-intensive product. Therefore, only in the case of large production volume of stamping parts, the advantages of stamping can be fully reflected, so as to obtain better economic benefits.
2. Security issues
Hardware gasket stamping also has some problems and shortcomings. Mainly in the hardware gasket noise and vibration generated when the two kinds of pollution, and operator safety accidents occur from time to time. However, these problems are not entirely due to the metal gasket stamping process and the mold itself, but mainly due to the traditional stamping equipment and the backward manual operation. With the advancement of science and technology, especially the development of computer technology, with the advancement of mechatronics technology, these problems will surely be resolved as soon as possible.
3. High-strength steel stamping
When the hardware gasket stamping high-strength steel, super high-strength steel to achieve a very good vehicle weight, improve the vehicle's collision strength and safety performance, it has become an important direction of development of automotive steel. However, with the increase of sheet strength, the traditional cold stamping process is prone to cracking during the forming process, and it cannot meet the processing requirements of high-strength steel plates. In the case that the molding conditions cannot be satisfied, hot stamping forming techniques for ultra-high-strength steel sheets have been gradually studied internationally. This technology is a new process that integrates forming, heat transfer, and phase transformation. It mainly uses high-temperature austenite, the plasticity of the sheet material, and the decrease in yield strength, and the forming process through the die. However, thermoforming requires in-depth research on process conditions, metal phase transitions, and CAE analysis technologies. Currently, this technology is monopolized by foreign manufacturers and domestic development is slow.