Titanium Alloy

In TIG welding, the arc is struck between the workpiece and the non-consumable electrode like thoriated tungsten for welding of ferrous materials and zirconated tungsten for aluminum. The consumable wire is melted in the arc atmosphere and the inert gases like argon or helium or their mixture are used as shielding gases. TIG is extremely suitable for joining thin sheets and tubes, and for making root pass welding in pipes, since the heat input in this process is minimal. TIG welds do not cause any undercuts or excessive penetration and give smooth welds. TIG welds provide superior quality weld metal, but the productivity is low.