锻压技术

基于数值模拟的铝合金板料自冲铆接成形

英文标题：Self-piercing riveting of aluminum alloy sheet based on numerical simulation

作者：周琦

单位：江阴职业技术学院

分类号：TG386

出版年,卷(期):页码：2019,44(7):47-51

摘要：

以汽车电池箱中的两层料厚为1.5 mm的5052-H32铝合金板料的自冲铆接作为研究对象，借助DEFORM-2D软件模拟了板料自冲铆接的变形过程，分析了铆接过程的载荷曲线及成形质量。利用铆接设备与模具对模拟结果进行试验验证，得到钉头高度、残余底厚以及底切量的试验值分别为0.103，0.458和0.389 mm，其与数值模拟值之间的相对误差分别为8.42%，5.05%和9.11%。基于数值模拟结果与理论经验公式，对铝板自冲铆接的力学性能进行预测，并且对铆接力进行性能测试，得到剪切力、剥离力以及十字拉伸力的试验值分别为3954，940.8和2102 N，其与理论预测值之间的相对误差分别为9.96%，5.11%和5.91%。

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.

基金项目：

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

参考文献：

[1]黄志超, 黄秋雯, 李绍杰, 等. 异种金属材料自冲铆接头位置对疲劳强度的影响[J]. 锻压技术, 2017, 42(9):150-156.

Huang Z C, Huang Q W, Li S J, et al. Influence of the self-piercing riveting position of dissimilar metal on fatigue strength[J]. Forging & Stamping Technology, 2017, 42(9): 150-156.

[2]丁文有, 何晓聪, 邢保英,等. 铆向组合对双铆钉自冲铆接头力学性能的影响[J]. 塑性工程学报, 2018, 25(5): 234-239.

Ding W Y, He X C, Xing B Y, et al. Effect of riveting orientation combination on mechanical properties of double rivet self-piercing riveted joint [J]. Journal of Plasticity Engineering, 2018, 25(5): 234-239.

[3]Zhi Q X, Wei M Y, Cheng Y, et al. Tensile capacity of self-piercing rivet connections in thin-walled steel structures[J]. Journal of Constructional Steel Research, 2018, 144: 211-220.

[4]黄志超, 李绍杰, 黄秋雯, 等. 5052铝合金空心铆钉与半空心铆钉的自冲铆接强度对比研究[J]. 锻压技术, 2017, 42(11):159-163.

Huang Z C, Li S J, Huang Q W, et al. Comparative study on self-piercing riveting strengths of hollow rivet and semi-hollow rivet for aluminum alloy 5052[J]. Forging & Stamping Technology, 2017, 42(11): 159-163.

[5]邢保英, 何晓聪, 王玉奇, 等. 铝合金自冲铆接头静力学性能及失效机理分析[J]. 焊接学报, 2015, 36(9):47-50.

Xing B Y, He X C, Wang Y Q, et al. Static mechanical properties and failure mechanism of self-piercing riveted aluminum alloy joint[J]. Transcations of the China Welding Institution, 2015, 36(9): 47-50.

[6]赵伦, 何晓聪, 张先炼. 钛合金自冲铆接头微动磨损机理及疲劳性能[J]. 焊接学报, 2016, 37(7):88-92.

Zhao L, He X C, Zhang X L. Fretting wear mechanism and fatigue behavior of titanium alloy self-piercing riveted joint[J]. Transcations of the China Welding Institution, 2016, 37(7): 88-92.

[7]李春平, 朱政强, 杨上陆, 等. 凹模形状对铝合金自冲铆接接头力学性能的影响[J]. 南昌大学学报：工科版, 2018, 48(10): 73-77.

Li C P, Zhu Z Q, Yang S L, et al. Effect of die geometry on mechanical properties of self-piercing riveted aluminum joints[J]. Journal of Nanchang University：Engineering ＆ Technology, 2018, 48(10): 73-77.

[8]杜国栋, 邢彦锋, 金光灿, 等. 铝钢薄板多铆钉连接变形分析及工艺优化[J]. 热加工工艺, 2018, 47(21): 183-186

Du G D, Xing Y F, Jin G C, et al. Deformation analysis and process optimization of multi-rivet connection in aluminum steel sheet[J]. Hot Working Technology, 2018, 47(21): 183-186.

[9]余康, 邢保英, 何晓聪, 等. AA5052自冲铆接头成形质量及其静力学性能研究[J]. 塑性工程学报, 2018, 25(3): 143-147.

Yu K, Xing B Y, He X C, et al. Study on forming quality and static performance of AA5052 self-piercing riveting joint[J]. Journal of Plasticity Engineering, 2018, 25(3): 143-147.

[10]黎雄, 饶政华, 王凤江, 等. 连接条件对GFRTP自冲铆接性能影响的数值研究[J]. 中南大学学报：自然科学版, 2018, 49(10): 2447-2453.

Li X, Rao Z H, Wang F J, et al. Numerical study of effects of joining conditions on performances of self-piercing riveted GFRTP[J]. Journal of Central South University：Science and Technology, 2018, 49(10): 2447-2453.

[11]Xin S, Mohammad A Khaleel. Dynamic strength evaluations for self-piercing rivets and resistance spot welds joining similar and dissimilar metals[J]. International Journal of Impact Engineering, 2007, 34: 1668-1682.

[12]Rezwanul Haque, Yvonne Durandet. Strength prediction of self-pierce riveted joint in cross-tension and lap-shear[J] Materials and Design, 2016, 108: 666-678.

[13]Andreas Chrysanthou, Sun X. Self-piercing Riveting Properties, Processes and Application[M]. Sawston: Woodhead Publishing, 2014.

服务与反馈：

【本网站尚未开通全文下载服务】【加入收藏】