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Experimental investigation on electro-hydraulic forming with flexible-die

机译：柔性模具电液形成的实验研究

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Recently, driven by the demand to reduce fuel consumption, light alloy has become one of the main metals used in automotive, aerospace and other fields. However, light alloys have tendency to fracture during the traditional stamping process. Researches have shown that high strain rate can greatly improve the metals' formability and thus the electro-hydraulic forming process, as one kind of high strain rate forming process, has received great attention. However, the corresponding experimental research is limited due to few dies with simple shapes adopted in the literatures. Here in this study, we presented one flexible electro-hydraulic forming process, which was based on the electro-hydraulic forming machine and one simple flexible die, to widen the application of electro-hydraulic technology. The shape of the die can be changed by adjusting the height of each screw. Several electrohydraulic forming experiments with dies of various shapes were carried out for AA6061 aluminum alloy sheets under various discharged voltages. The reliability of the flexible combined forming process was validated and corresponding disadvantages were analyzed.
机译：最近，随着降低燃料消耗的需求驱动，轻合金已成为汽车，航空航天等领域的主要金属之一。然而，轻质合金在传统的冲压过程中具有裂缝的趋势。研究表明，高应变速率可以大大提高金属的成形性，从而大大提高电液形成过程，作为一种高应变率形成过程，得到了极大的关注。然而，由于在文献中采用了简单的形状，相应的实验研究受到限制。在此研究中，我们介绍了一种灵活的电液形成过程，基于电液形成机和一个简单的柔性模具，扩大了电液技术的应用。通过调节每个螺钉的高度，可以改变模具的形状。在各种放电电压下对AA6061铝合金片进行各种形状的多种电液形成实验。验证了柔性组合形成过程的可靠性，并分析了相应的缺点。

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