This study was supported by National Natural Science Foundation of China (51105109), the Major State Basic Research Development Program of China (973Program) (No. 2013CB035500)and Natural Scientific Research Innovation Foundation in Harbin Institute of Technology ( HIT. NSRIF. 201006).
In order to study the arc force distribution of ultrasonic assisted tungsten inert gas (U-TIG) welding and compare it with the conventional tungsten inert gas (TIC) welding, a series of experiments have been carri...