The use of cold stamping process parts, need to be 3-6 of processes to form the required shape, size. Steel plate hot stamping can only be formed by a stamping, so part design to fully consider its process characteristics, for stamping depth is very deep, forming difficult in the middle channel type parts, you can first use cold stamping pre stamping, and then hot stamping.Steel Plate
In the case of cold stamping, the locating pins are used to locate the blanks. For hot stamping, in order to minimize the blank before stamping and die surface contact, in order to reduce temperature drop, improve the formability of hot stamping, special support mechanism to support the blanks. CAE analysis is divided into the analysis of hot stamping process for predicting the manufacturability of parts hot stamping, the analysis of the process of pressure-holding quenching for predicting the microstructure and mechanical properties of parts, and the Springback analysis for predicting the forming accuracy of parts.Steel Plate
Thermal stamping process Analysis. It needs accurate material performance parameters, such as elastic modulus, Poisson ratio, stress-strain relationship in high temperature condition and steel plate friction characteristics. It can be used to predict the defects of hot stamping parts, and to optimize and improve the shape of parts and hot stamping die surfaces.Steel Plate
Rebound analysis. At present, the mechanical properties and dimension accuracy of the parts are tested by making the sample mould. Hot stamping can get ultra-high strength body parts, relatively good formability, stamping needs of 800t small tonnage hydraulic press can be completed, good dimensional accuracy. As a new forming technology, hot stamping has a wide application prospect in the field of automobile manufacturing. The C content of the hot rolled steel plate must be kept at 0.03% or higher to form a large amount of coarse carbide.Steel Plate
Besides, the process parameters such as hot rolling coiling temperature, cold rolling rate and recrystallization annealing temperature also have a great influence on the scale explosion. Generally, the coiling temperature is above 750 ℃, the steel plate with cold rolling rate in $number range is better, and the better annealing temperature is 700 ℃. The effect of recrystallization annealing temperature on the scale explosion is less than the cold rolling reduction rate. However, the boiling plate without annealing or high-temperature annealing is easy to produce a scale explosion.Steel Plate
