Springback Simulation and Springback Compensation of an Aluminum Outer Panel

摘要

In the present paper, the main factors which influence the accuracy of springback simulation are discussed, and the optimized parameters, which aim at obtaining an accurate springback simulation, and the full cycle simulation, which aims at the closest boundary condition between simulation and practice, are discussed. As a verification and comparison, an experimental part, Aluminum hood outer, is used and some good results are achieved. Based on the result of the springback verification, the minimum clamping concept for springback compensation is discussed and the compensation strategy is determined according to the springback behavior in different operations. Moreover, the springback in the car position and in the inspection tool is compared and a methodology of springback compensation without gravity is put forward. In the end, the basic principles of the rebuilding of class A surface is discussed and the comparison of geometrical deviation of the final part in tryout is given in this paper.