A joining process for aluminum alloy/stainless steel pipes, named electrohydraulic expansion joining was presented. The process experiment, simulation analysis and mechanical tests were conducted. The results revealed that the deformation degree increased with the increase of the discharge voltage and the groove width, which further improved the joint performance. The ultimate pull-out load was 18.57 kN. The joints had two failure modes: pull-out of the aluminum alloy pipe from the groove and tearing of the aluminum alloy pipe at the leading groove edge. The velocity distribution and deformation process of the inner pipe were analyzed to reveal the joining mechanism.

中文翻译：

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6063铝合金/ 304不锈钢薄壁管的电动液压膨胀节力学性能及连接机理

提出了铝合金/不锈钢管的连接方法，称为电液膨胀管。进行了工艺实验，模拟分析和机械测试。结果表明，变形程度随放电电压和槽宽的增加而增大，从而进一步提高了接头性能。极限拉拔载荷为18.57 kN。接头有两种失效模式：从凹槽中拔出铝合金管和在凹槽的前缘撕裂铝合金管。分析了内管的速度分布和变形过程，揭示了连接机理。