Aluminum alloys are being exploited for reducing the weight of automobiles in the ongoing efforts to improve energy efficiency. This study compares the performance of three joining methods, namely, spot welds, self-piercing rivets, and adhesive bonded, for aluminum AA5754-0 plate. Adhesive performance is also compared with three alloys; AA5754-0 which is a rolled sheet, extruded C210-T6, and cast A356-T6. Non-reinforced lap-shear joints were tested both quasi-statically and dynamically to compare the peak load before failure and total energy absorbed by the joint. In all cases, the aluminum samples had a protective coating applied at the mill. It is found that the spot welded joint is the strongest among the three joining methods studied in both the static and dynamic cases. Joint with self-piercing rivet is the next strongest in the static case, performing about the same as the cast aluminum adhesive joint. Under dynamic test conditions, there is a significant improvement in all joints except the self-piercing rivet. The rolled aluminum samples, weakest in static testing, is the strongest in dynamic testing. At the highest test speed of 5.12 m/s (11.3 MPH), the performance of all self-piercing rivet, and the C210-T6 and A356-T6 adhesive joints are about the same.
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机译：正在利用铝合金来降低汽车的重量，以提高能源效率。本研究比较了三种连接方法，即点焊接，自刺铆钉和粘合剂的性能，用于铝AA5754-0板。粘合剂性能也与三合金相比; AA5754-0是轧制板，挤出的C210-T6，并铸造A356-T6。在准静态上并动态地测试非增强的搭接剪切接头以比较失败前的峰值负荷和由关节吸收的总能量。在所有情况下，铝样品在研磨机上具有保护涂层。发现点焊接接头是在静态和动态壳体中研究的三种连接方法中最强的。具有自穿孔铆钉的关节是下一个最强大的静壳，与铸铝粘合剂接头进行大致相同。在动态测试条件下，除了自穿孔铆钉之外的所有关节都存在显着改善。滚动的铝样品，静态测试中最弱，是动态测试中最强的。以最高的测试速度为5.12 m / s（11.3英里/小时），所有自刺穿铆钉的性能，以及C210-T6和A356-T6粘合剂的性能大致相同。
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