Technical characteristics of hot stamping forming of automobile metal stamping parts processing plant

Hot stamping forming in automotive metal stamping parts processing plants is an advanced manufacturing technology that has emerged in the world in recent years specifically for forming ultra-high-strength steel stamping parts, and it is also a relatively advanced technology in the field of automotive stamping parts manufacturing; metal stamping The steel plate used in the hot stamping process of the parts processing plant is a special boron alloy steel plate. This steel plate is different from the traditional cold-formed ultra-high-strength steel. It is now widely used in cold-formed high-strength steel such as dual-phase steel and complex phase steel. The strength steel plate is generally formed by cold stamping at room temperature; the microstructure and mechanical strength of the parts before and after forming basically do not change, while the steel plate used in hot stamping is not very strong at room temperature, and its tensile strength Only 400~600MPa, with good plasticity and formability, it is formed and quenched by the hot stamping process, the microstructure of the part is transformed from the original ferrite and pearlite into uniform martensite. The tensile strength can reach more than 1500MPa, the hardness can reach 50HRC, and there is basically no rebound, with high dimensional accuracy. Boron is added to the steel plate. The purpose is to improve the quenching performance of the steel plate and make the structure transformation of the plate smooth. In addition, in order to improve the strength of the material and other mechanical properties, a variety of alloy trace elements such as Ti Cr Mo Cu Ni are also added; Recommended article: The difference between uncoiling blanking and ordinary blanking in stamping parts processing Previous: Metal stamping Several manufacturability of drawing parts in parts