Transactions of Materials and Heat Treatment

Title：Finite element simulation and experiment on hydroforming tubular twist beam

Authors： Yin Xuelian Lu Ruodong

Unit： Shanghai Huizhong Automotive Manufacuring Co. Ltd. Research Institute of Baosteel

KeyWords： hydroforming twist beam finite element surface comparison stiffness

ClassificationCode：TG394

year,vol(issue):pagenumber：2017,42(9):82-86

Abstract：

Compared with blank twist beam, the tubular twist beam can reduce weight, and increase the strength, stiffness and fatigue by hydroforming. Therefore, the typical cross section was analyzed, and manufacture difficulties and main defects in the hydroforming were pointed out. Then, the hydroforming process was numerically simulated by FEA, and the thickness distribution of typical section was analyzed. The thickness variation was larger on transition area, but not obvious in the middle zone. Furthermore, the tryout was carried out. The result shows that the finite element simulation results of tubular twist beam forming are in line with the experimental results, and the actual shape of the part is basically the same as that of theoretical design.

Funds：

阴雪莲（1979-），女，硕士，工程师 E-mail：yinxuelian@shac.com.cn

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