Provides students with a technical understanding of gas tungsten arc welding, equipment adjustments, tungsten electrodes, filler metals, shielding gases, plasma arc cutting and welding safety. Also provides training to develop skills to make quality welds on 14- and 11-gauge mild steel, stainless steel and aluminum, in the flat, horizontal and vertical positions. Prepares students for production/maintenance welding. Prerequisite: WELD180M.