Numerical Simulation of Cooling Process for Hot Forming Ultrahigh Strength Steel
In view of the cooling pipe arrangement in hot forming die cooling system,a hot forming finite element model for ultra high strength steel was estabilished,and the hot stamping was simulated using ABAQUS,the influence of forming speed and holding pressure time on the cooling was mainly analyzed.The simulation results show that,the faster the forming speed,the smaller the deformation resistance and maximum temperature difference of sheet.It is not so that the longer holding pressure time,the better the results during cooling.The results provide the reference for the similar steel plate when choosing hot forming process parameters.