In the forming process of DP780 automobile panels

a new technoloy of mixed drawbeads is pro- posed. Using the safety belt fixed plate as an example

the drawing

cutting edge and springback was simulated by Dyanform. Through the analysis and comparison of simulation results under different drawing conditions. We obtain mixed drawdeads effect on deformation and springback of automobile panels. The conclusion：Mixed drawbeads not only effectively control the non-uniformity of material flow in each part of the stamping parts

makes full deformation of the effective part and improves the forming quality of the part

but also can be very effective in controlling springback of the stamping parts and provides design parameters for establishing reasonable forming techniques.