Transactions of Materials and Heat Treatment

Title：Multi-index optimization on forming quality of self-piercing riveting for aluminium-steel materials based on orthogonal experiment

Authors： Zhang Qisen Peng Guizhi Wang Xiaoli

Unit： Wuxi Automotive Engineering Branch of Jiangsu Union Technical Institute Jiangyin Polytechnic College Lianyungang Technical College

KeyWords： dissimilar materials of aluminum-steel orthogonal experiment self-piercing riveting multi-index optimization matrix analysis method

ClassificationCode：TG386

year,vol(issue):pagenumber：2020,45(3):87-91

Abstract：

For self-piercing riveting of 6016 aluminium alloy with the thickness of 1 mm and ST13 structural steel with the thickness of 1.5 mm in an automobile, the multi-index of forming quality for self-piercing riveting of 6016/ST13 aluminium-steel dissimilar materials was optimized by the orthogonal experiment design and numerical simulation software Deform-2D. Then, taking die width, height of die convex and die depth as the influencing factors and the remaining thickness, under-cut and head height as the evaluation indexes, the results of orthogonal experiment were analyzed by matrix analysis, and the optimum scheme of self-piercing riveting for 6016/ST13 aluminum-steel was obtained with the die depth of 1.5 mm, the die width of 9 mm and the height of die convex of 0 mm. Furthermore, the simulated values of remaining thickness, under-cut and head height were 0.487, 0.602 and 0.059 mm respectively. Finally, the optimum scheme was tested by riveting equipment and installation die, and the relative errors of remaining thickness, under-cut and head height between simulation and experimental values were 12.12%, 8.97% and 13.56% respectively. Thus, the correctness of orthogonal experiment and finite element simulation applied to the optimization of process parameters for self-piercing riveting of aluminium-steel dissimilar sheets was verified.

Funds：

2018年江阴职业技术学院科研项目(18E-JD-20)；连云港市中小企业技术创新项目(CK1101)

张启森（1982-），男，硕士，副教授 E-mail：wxzqs@126.com

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