提出垫板加热辅助搅拌摩擦焊接方法对钛合金板进行焊接。通过与传统FSW工艺温度场及仿真对比分析,垫板加热辅助搅拌摩擦焊接方法不仅可以起到焊前预热的效果,拓展了焊接工艺参数应用范围,而且一定程度上可减小摩擦力,搅拌头磨损的减小间接提高了搅拌头的使用寿命。 It is proposed that the backing plate heating auxiliary friction stir welding method solves the titanium alloy plate. Compared with the traditional FSW process temperature field and simulation, the auxiliary plate friction stir welding method not only can play the effect of preheating, but also expand the application range of welding process parameters, and to a certain extent, it can reduce the friction, stirring The reduction of head wear indirectly increases the service life of the mixing head.