• G Prakasham
• M Bhargava Chandra

Gas Tungsten Arc Welding is a well-known welding technique, used in industries in the current age. Aluminium is the most commonly used material in all types of industries. Aluminium is the second material in case of annual consumption after steel. Pure aluminum melts at 660°C, and its alloys are at a slightly lower temperature. The crystal structure of aluminum is FCC. It is a very ductile material. It was observed that TIG welding has better Tensile strength, hardness, impact strength, and microstructure compared to another welding of aluminum alloys. AA1100 alloy and AA3003 alloy were joined by Gas Tungsten Arc (GTA) welding with Aluminium (ER4043) as a filler metal. The microstructure and its properties of the Aluminium alloy GTA weld joint were studied by means of Optical Microscopy, Universal Testing Machine, Charpy Impact, and Hardness Tests. It showed that Aluminium alloy metals could be successfully joined by GTAW under proper processing parameters.

GTAW, Aluminium alloy, Microstructure, Mechanical properties.

"INVESTIGATION OF MECHANICAL PROPERTIES AND MICROSTRUCTURE OF AA1100 ALLOY AND AA3003 ALLOY WELDED JOINTS USING GTAW", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.10, Issue 1, page no.e1-e7, January-2023, Available :http://www.jetir.org/papers/JETIR2301411.pdf

"INVESTIGATION OF MECHANICAL PROPERTIES AND MICROSTRUCTURE OF AA1100 ALLOY AND AA3003 ALLOY WELDED JOINTS USING GTAW", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.10, Issue 1, page no. ppe1-e7, January-2023, Available at : http://www.jetir.org/papers/JETIR2301411.pdf