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所属单位：材料科学与技术学院

发表刊物：Jixie Gongcheng Xuebao

摘要：The traditional finite element modeling of the welding process for complex components is based on the theoretical and ideal CAD model. The problem is that the modeling period is long and the precision is not high enough. However, the machining before actual welding processing, such as forging, often change the shape and size of the actual component comparing with the designed one. It finally results in the difference between the actual and theoretical geometry model. The application of reverse engineering technology which used in irregular complex surface modeling of rapid manufacturing system and developed rapidly in recent years for welding structure can not only improve the modeling accuracy, but also shorten the whole modeling period. Taking the inner panel of a vehicle rear body side as an example, the reverse engineering technology is used to obtain the CAD model, which proves the high efficiency and accuracy of the reverse engineering modeling. In order to optimize the welding process and guide the production practice, the finite element model based on resistance spot welding is established to analyze the distribution of stress field and deformation under different welding steps and the interaction of stress field and deformation between two continuous processes. © 2018 Journal of Mechanical Engineering.

ISSN号：0577-6686

是否译文：否

发表时间：2018-01-20

合写作者：Zhao, Wenyong,Liu, Xiangbo,Wu, Haijiang,Zhang, Tao,Li, Zhuo

通讯作者：魏艳红