搅拌摩擦焊(简称FSW)是一种新型连接工艺,它与传统的焊接工艺相比,大大减小了焊接变形量,消除了焊接凝固缺陷的产生。因为在搅拌摩擦焊工艺过程中,金属并不发生熔化,金属的连接也是在其熔点以下形成的,焊接过程所需热输入量小,变形小,无需填充金属,且不产生烟尘, Friction stir welding (referred to as FSW) is a new type of connection process, which compared with the traditional welding process, greatly reducing the amount of welding deformation, eliminating the welding of solidification defects. Because in the process of friction stir welding, the metal does not melt, the metal is also connected below the melting point of the formation of the welding process requires less heat input, small deformation, without filling metal, and does not produce smoke and dust,