The influence of the pin geometry on the formation of lazy S in the friction stir welds of aluminum alloy LF6 was investigated by using four different pin geometries.

• 采用四种不同形状搅拌针的搅拌头进行搅拌摩擦焊试验,研究了搅拌针形状对LF6铝合金搅拌摩擦焊焊缝S曲线形成的影响。