Transactions of Materials and Heat Treatment

Title：Self-piercing riveting of aluminum alloy sheet based on numerical simulation

Authors： Zhou Qi

Unit： Jiangyin Polytechnic College

KeyWords： self-piercing riveting 5052-H32 aluminum alloy forming quality mechanical properties DEFORM-2D

ClassificationCode：TG386

year,vol(issue):pagenumber：2019,44(7):47-51

Abstract：

Taking self-piercing riveting for two layers of 5052-H32 aluminum alloy sheet with thickness of 1.5 mm in the automobile battery box as the research object, the deformation process of self-piercing riveting for sheet metal was simulated by DEFORM-2D, and the load curve of riveting process and forming quality were analyzed. Then, the simulation results were verified by riveting equipment and die. It is found that the experimental values of head height, residual bottom thickness and under-cut amount are 0.103, 0.458 and 0.389 mm, respectively, and the relative errors between experimental values and simulation values are 8.42%, 5.05% and 9.11%, respectively. Based on numerical simulation results and theoretical empirical formulas, the mechanical properties of aluminum sheet in the self-piercing riveting were predicted, and the riveting force was tested. It is obtained that the experimental values of shear force, peeling force and cross-tension force are 3954, 940.8 and 2102 N, respectively, and the relative errors between experimental values and theoretical predicted values are 9.96%, 5.11% and 5.91%, respectively.

Funds：

江苏省高校哲学社会科学基金资助项目(2017 SJBFDY297)

周琦（1981-），男，硕士，讲师，E-mail：632992423@qq.com

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