Research on the drawbead restraining force by numerical simulation;

Optimized design of drawbead using improved genetic algorithm combined with BP artificial neural network;

Geometry Parameters Optimization for Drawbeads Based on Adaptive Response Surface Method;

0,the forming limit tends to be stable;and the movement of weld-line is reduced with the presence of draw bead on die.

Proper layout of draw bead is one of the key ways on controlling forming quality of ram parts in automobile panel formation.

In the simulation software DYNAFORM, regarding the computation model of the drawbead restraining force established in the text "drawbead binding model and experimental study" as an equivalent drawbead, simulating and analyzing the forming of a certain component on the base of the surface dial.

Due to complexities of draw bead restraining force calculated according to theory, depending on sheet metal forming properties experiment testing system developed, a simply method to calculate draw bead restraining force is put forward by experiment method in cup shaped drawing process.