Numerical Simulation of Differential Temperature Drawing of AZ31 Magnesium Alloy Sheet

To acquire the mechanical properties of deep drawing of AZ31 magnesium alloy, uniaxial tensile tests were carried out under different temperatures and strain rates. The experimental data were inputted into the Deform-2D software.Deep drawing process of the AZ31 magnesium alloy cylinder was simulated by adopting differential and constant temperature model. The results show that differential temperature drawing model can improve the drawability of AZ31 magnesium alloy sheet well; with the increase of the drawing speed, drawing depth decreases, and the dangerous section moves; when the speed is 1mm/s, the cylindrical workpiece can be formed successfully. After changing the temperature of the punch, the drawing depth increases with the increase of punch temperature, and when the temperature of the punch is 60℃, the drawing depth reaches the maximum.