Tig Welder This welding process uses a non-consumable tungsten electrode. A constant current feeds energy cross the arc. A shielding gas protects the weld area.works well with thin sections of alloy steel, stainless steel, and non-ferrous metals like aluminum, magnesium, and copper alloyshigh quality, precise weldsweld beads that look goodallows for heat input adjustment while welding with a foot control Technical Arc GYS Jasic Lincoln Electric Parweld ESAB