Figure 1From: Effects of Active Gases on Droplet Transfer and Weld Morphology in Pulsed-Current NG-GMAW of Mild Steela Schematic diagram of welding experiment system setup, b cross section dimension of specimen and its narrow-gap groove, c Welding current and arc voltage waveforms, d characterization for first-pass weld bead of NG-GMAWBack to article page