The Weldability of AISI 1020 Mild Steel Using Autogenous Tungsten Inert Gas (TIG) Welding: An Experimental Study
Keywords:
AISI 1020, Activated flux (A-TIG), Hardness test (Test), Tensile test (Test), Welding using tungsten inert gas (TIG)Abstract
Inactive Tungsten when excellent weld quality or great precision welding is needed, many people turn to gas welding, also known as Gas Tungsten Arc Welding (GTAW), an advanced arc welding technology. However, TIG welding has significant drawbacks, the most significant of which are its sluggish welding speed and its inability to weld thicker materials in a single pass. In this study, a 5-millimeter-thick AISI 1020 mild steel plate was welded utilizing autogenous TIG welding without any filler material. Extensive testing has been done with a variety of welding currents and scan speeds to ensure complete penetration. The depth of the weld has also been enhanced by the application of activated flux. Weld bead geometry and tensile strength were studied after welding was performed while keeping varying distances between the plates. Full penetration welding of the plate is shown to be attainable by keeping a suitable spacing, which provides strength practically identical to the base material.
