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최보성(Bosung Choi),황재현(Jaehyun Hwang),백일기(Ilki Baek),최원호(Wonho Choi),이덕영(Dugyoung Lee),안장호(Jangho Ahn) 한국자동차공학회 2009 한국자동차공학회 부문종합 학술대회 Vol.2009 No.4
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.