Metal Transfer Behavior of Metal-Cored Arc Welding in Pure Argon Shielding Gas

The metal transfer behavior of gas arc welding in a pure argon shielding was evaluated through experiments using standard solid wire and metal-cored wire. investigation conducted observation techniques based on recording images by high-speed camera equipped with laser assistance bandpass filters range currents. It observed that the mode became streaming when current increased Meanwhile, wire, droplet frequency increased, diameter decreased without changing globular mode. We surmised would be caused spread plasma at tip, which decreases effect electromagnetic force detachment. Conversely, due to presence flux inside could not attached close iron vapor overhead droplet. Hence, acting side unmelted ineffective promoting detachment, preventing transition Furthermore, weld bead formation better than conventional