PMT0131 - Gas Tungsten Arc Welding PMT0131 - Gas Tungsten Arc Welding , Clock Hrs: 120 A course in the fundamentals of tungsten inert gas welding including setup and adjustment of the TIG welding machine, selection of proper tungsten electrodes, selection of filler metals, use of various shielding gases, practical experience in TIG welding basic welded joints on stainless and mild carbon steel, aluminum sheet and casting, and magnesium casting. (4 vocational credits/120 clock hours) Terms This course may be repeated for credit. Classification: CTC Clock Hours: 120