2014•Journal of Netshape Forming EngineeringRequires access
Numerical Simulation and Experiment of Hot Stamping Process with 22MnB5 Steel
Zi Gong
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Abstract
Objective To study the temperature distribution and phase transformation of blank in hot stamping process.Methods The thermo- mechanical model was established in Abaqus software to simulate the U- shaped part forming and quench cooling process. The temperature distribution of blank and die and cooling rate were analyzed in this study. The hot stamping experiment was conducted to validate the simulation. Results The results showed that the temperature of blank was uniformly distributed after the quench cooling process. The cooling rate of blank was greater than the critical cooling rate and the martensitic phase transformation occurred completely in the blank. Conclusion The microstructure was all fine martensite and distributed uniformly at the bottom owing to its fastest cooling rate among the three areas of the blank. The accuracy of simulation was verified with the hot stamping experiment.