Overview. Makes weldments on ferrous and non-ferrous materials using electric arc, hand heliarc or semi- automatic heliarc welding process, involving any type or weld for required appearance and quality requirements in any position. Responsibilities. Moves, sets up and adjusts equipment and selects proper rod to perform work assigned. Prepares surface to be welded. burns, gauges, fits, tacks and welds as necessary to complete repair (Example: spl...