Study on Multi-stage Forming of Booster Front Case Based on Numerical Simulation
Based on the optimization principles,which were that the parts were not be broken in the whole forming process and the material thinning rate was minimal,the factors which affect the forming quality,such as blank size,die clearance,punch round,the depth of drawing and the shape of binder,were analyzed.The forming processes of firstly blanking,drawing and punching,secondly drawing again and square cut,and then punching and rolling,finally pressing rib and shaping were defined.By comparing the actual production part with the simulation results,it can conclude that the numerical simulation results fit with the actual production.