The welding deformation of Body In White(BIW) directly affects the performance of the vehicle and perceived quality of the interior and exterior. In order to reduce the equipment investment dueto design change, human resources and gestation cycle caused by BIW welding deformation, this paper obtains an effective and feasible process scheme by summarizing typical BIW joints such as U-, Z- and T-shaped joints, combining with welding deformation simulation, physical verification and summarization, as well as comparing different welding process of typical joints. By simulating the welding deformation of typical joints of BIW, this paper obtains the welding sequence of each joint which is most conducive to ensuring the accuracy, and proposes reference for process design, equipment selection and shortening the process design cycle.

BIW  /  Welding deformation  /  Typical joints  /  Welding process