CAE를 통한 하이브리드 용접 후 차체부품 변형예측

다국어 초록 (Multilingual Abstract)

In recent years, laser-arc hybrid welding has begun to be adopted for assembly welding of automotive bodies and parts, because hybrid welding process can weld lapped steel sheets that have a lager pap than is possible with laser welding. But if the gap is wide, burn-through occurs, and, if the gap is excessive, the two sheets cannot be welded together. For this reason, the gap is very important for hybrid welding. In this paper, to predict the twist deformation by hybrid welding when brackets are welded in B pillar of passenger car, the residual stress using CAE is analyzed and the deformation results of CAE is compared with welded panel.