搅拌摩擦焊(FSW)是英国焊接研究所20世纪90年代初发明并拥有专利权的一种固相塑性连接技术。目前,国内外研究较多的是各种铝及铝合金的搅拌摩擦焊。(1)搅拌摩擦焊原理及特点与常规摩擦焊一样,搅拌摩擦焊也是利用摩擦热作为焊接热源。不同之处在于,搅拌摩擦焊的焊接过程是由一个带有探针和轴肩的特殊形式的搅拌头来完成的,如附图所示。先将探针插入被焊接板 Friction stir welding (FSW) is a solid-phase plastic joining technique invented and patented by the British Institute of Welding in the early 1990s. At present, more research at home and abroad are all kinds of friction stir welding of aluminum and aluminum alloy. (1) The principle and characteristics of friction stir welding Like conventional friction welding, friction stir welding is the use of friction heat as a welding heat source. The difference is that the friction stir welding process is carried out by a special type of mixing head with a probe and a shoulder, as shown in the drawings. Insert the probe into the soldered plate first