The hot stamping forming technology is based on the principle of metal thermoplastic forming, which can realize the quenching heat treatment of sheet metal while forming, improve the formability of materials, and greatly expand the application range of high-strength ultra-high-strength steel in automobile parts.
　　With the successive introduction of national mandatory regulations on automobile frontal collision, side collision and emission, the steel materials for automobile body are increasingly facing severe challenges. The use of advanced high-strength steel, such as DP steel, TRIP steel, and high expansion steel, has become the mainstream trend of automobile materials without dispute. Through the reasonable matching of body parts thinning and high strength, not only can effectively reduce the body weight and fuel consumption, but also can ensure and improve the safety and comfort of the vehicle. However, for the stamping process, thinning and high strength are the dual factors that deteriorate the formability, which not only makes the body parts easy to crack in the forming process, but also easy to produce excessive rebound, affecting the subsequent assembly of the body. In addition, the thinning and high strength have a negative impact on the service performance of the body parts themselves, especially the stiffness characteristics. For high-strength steel with strength over 1000 MPa, the traditional stamping process is often helpless. A new type of forming process, the hot stamping technology of special high-strength steel plate came into being
　　However, in general, the crash performance of domestic models (especially the self-owned brand models), especially the side crash performance, is generally poor. The reasonable use of hot-stamping parts can not only significantly improve the crash performance of the body, reduce the weight of the body, but also effectively control the comprehensive manufacturing cost of the body. Some domestic auto manufacturers with independent brands can not only view the new hot stamping technology from a strategic perspective, but also boldly adopt it in their new or improved models, and have achieved very significant results. The N-NCAP (foreign crash test) of A and B stiffening plates of a certain model in China has risen from one star to three stars after using hot stamping parts. It can be predicted that the new hot stamping technology of steel plate will be more and more widely used in the automotive field, and the research of its related equipment and core technology will also become a new research hotspot in the stamping industry.