AA5083铝合金的搅拌摩擦焊接工艺参数对搅拌头受力和热输入的影响(英文)

采用系统实验设计方法研究AA5083铝合金搅拌摩擦焊接工艺参数对搅拌头受力和热量输入的影响,得到了用来设计搅拌摩擦焊搅拌头和焊机的经验模型。当采用计算机来控制搅拌摩擦焊接时,这些模型可用来确定AA5083这类铝合金的摩擦焊接工艺参数、编制焊接程序及工艺参数控制。结果表明:影响轴向力和热量输入的重要参数是搅拌头转速、焊接速度和搅拌头轴肩直径,而影响纵向应力的重要参数是焊接速度和探头直径。

Process forces and heat input as function of process parameters in AA5083 friction stir welds

AA5083 friction stir welds were produced using systematic experimental design,the process forces and heat input with varying parameters were studied.Helpful empirical models were developed in designing friction stir welding(FSW) tools and FSW welders.These models may be further helpful for making process parameter choice for this sort of alloy,defining welding program and control of process parameters by using computer numerical control friction stir welding welders.The results show that tool rotational speed,welding speed and tool shoulder diameter are most significant parameters affecting axial force and heat input,while longitudinal force is significantly affected by welding speed and probe diameter.