The metal transfer of twin electrode single arc welding was investigated with a digital high-speed video analyzer and an arc shadow-graphing system based on a laser source and related optical system.

• 用激光背光高速摄像系统研究了双电极焊条的熔滴过渡,阐述了双电极焊条熔滴过渡的特点,基于试验结果,总结了双电极焊条熔滴过渡的各种形式。