锻压技术

基于Deform-2D的铝合金板料自冲铆接质量的研究

英文标题：Research on self-piercing riveting quality for aluminum alloy sheet based on Deform-2D

作者：章芳芳唐媛红刘月云

分类号：TG386

出版年,卷(期):页码：2019,44(11):64-67

摘要：

以电动汽车电池箱中铝合金板料的铆接为研究对象，利用Deform-2D软件，建立板料自冲铆接的有限元模型，并对两层1.5 mm料厚的5052-H32铝合金板料的自冲铆接过程进行有限元仿真，借助铆接设备与安装模具对仿真结果进行试验验证，得到互锁长度、残余厚度和钉头高度的模拟值与试验值之间的相对误差分别为11.46%、5.37%和2.86%，从而验证了有限元仿真的正确性。在有限元仿真的基础上，分析了工艺参数对板料铆接质量的影响变化趋势。研究结果表明：互锁长度随着模具凸台高度以及铆接速度的增加而增大，而随着模具深度的增大呈现不断减小的趋势；钉头高度与残余厚度随着模具凸台高度及铆接速度的增加而不断减小，而随着模具深度的增加则呈现逐渐增大的变化规律。

For the riveting of aluminum alloy sheet in battery box of electric vehicle, the finite element model of self-piercing riveting for sheet metal was established, and the process of self-piercing riveting for 5052-H32 aluminum alloy sheet with thickness 1.5 mm was simulated by software Deform-2D. Then, the simulation results were verified by riveting equipment and installation die, and the relative errors between simulation values and experimental values of interlocking length, residual thickness and head penetration were 11.46%, 5.37% and 2.86% respectively. Therefore, the correctness of finite element simulation was verified, and the influences of process parameters on the riveting quality of sheet metal were analyzed based on finite element simulation. The results show that the interlocking length increases with the increasing of die convex height and riveting speed, while it decreases with the increasing of die depth. However, the head penetration and residual thickness decrease with the increasing of die convex height and riveting speed, while they increases with the increasing of die depth.

基金项目：

江苏省高等学校自然科学研究面上项目(18KJB 460013)

章芳芳（1987-），女，硕士，讲师，E-mail：710290204@qq.com

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