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在制造金属结构的过程中,通常需要将两个或三个以上的构件组合起来,而构件之间的组合则需要一定的连接方式。铆接、焊接等连接方式被广泛应用于航空航天、汽车等诸多领域。图1~图4所示XX飞机蒙皮、梁,汽车座椅都是通过铆接的方式连接在一起,而铝型材结构件的焊接则需要防护措施的保护。通俗的讲,铆接是指在几块固定的搭接的板上打孔,将铆钉放入,然后将铆钉铆死,最后将两块板连在一起的方法。铆接不仅会增加结构重量,而且因局部打孔将引起应力集中。传统熔化焊因焊缝温度过高易引起焊接缺陷,
In the process of manufacturing a metal structure, usually two or more components need to be combined, and the combination of components requires a certain connection. Riveting, welding and other connections are widely used in aerospace, automotive and many other fields. The aircraft skin, beams and car seats shown in Fig. 1 to Fig. 4 are all connected together by riveting, while the welding of the aluminum structural members requires the protection of protective measures. Popular speaking, riveting refers to a fixed lap in a few holes in the plate, the rivets into, and rivets rivets, and finally the two plates together. Riveting will not only increase the weight of the structure, but also cause stress concentration due to local drilling. Traditional fusion welding due to the high temperature of the weld can cause welding defects,