Analysis and Control of Car Door Inner Panel Forming Fracture Based on Experience Knowledge and Numerical Simulation
The process factors influencing the forming quality of car inner door panel such as stamping direction, binder surface, draw-bead, addendum surface and technical cut are determined based on experience knowledge. Aiming at local fracture problem of test pieces, some key parameters are determined based on experience knowledge, and the strain in thinning area of sheet metal forming is analyzed by numerical simulation. Based on this, process optimization and die modification scheme are put forward. Engineering inspection proved that optimized process and die parameters are reasonable, after increasing die fillet radius and process hole radius, decreasing draw-bead height, qualified products are achieved and fracture flaw is well controlled.
Zhengyi Jiang, Shanqing Li, Jianmin Zeng, Xiaoping Liao and Daoguo Yang
H. Y. Wu et al., "Analysis and Control of Car Door Inner Panel Forming Fracture Based on Experience Knowledge and Numerical Simulation", Advanced Materials Research, Vols. 189-193, pp. 2567-2571, 2011