Effects of welding parameters on mechanical properties and microstructure of TIG welded joints of AA4043

Author:

Shete Hanmant,Powar Vinayak

Abstract

Abstract Welding technology has played a vital role in the manufacture of complicated structures in automobile, petrochemical, aerospace, power plant, and ship industries. Tungsten Inert Gas welding process is superior technique and produces high quality weld economically. Aluminum alloy 4043 is currently preferred material in automobile, kitchen utensils and aviation industry sector due to its lightweight properties. The effective TIG welding process for AA4043 material is not studied yet with regard to micro-hardness, impact strength properties in correlation with the microstructure. Hence, consequence of welding parameters, namely welding current, voltage, and weld speed on micro-hardness, impact strength is studied based on Taguchi method. As per the developed experimental matrix, the TIG welded samples of AA4043 plates are produced using the tungsten electrode and filler wire of AA4043 in pure argon as shielding gas. Micro-hardness, impact tests are performed on welded samples and microstructures of different zones of weld are evaluated. Weld zone has highest micro hardness compared to heat affected zone (HAZ) and base metal due to presence of small grain structure. As current increases, large amount of solute enrichment in weld zone and HAZ, whereas severe grain structure change is predominantly observed in transition zone. The optimal parameters are obtained as welding current of 180 A, the voltage of 45 V and welding speed of 3.5 mm/sec for maximum micro-hardness of weld zone and impact strength of weld joint.

Publisher

IOP Publishing

Subject

Computer Science Applications,History,Education

Reference20 articles.

1. Effect of welding parameter on mechanical properties of TIG welded AA6061;Bansal;Material Today: Proceedings,2021

2. Effect of pulsed current TIG welding parameters on mechanical properties of J-joint strength of AA6351;Rani;The International Journal of Engineering & Science,2012

3. Effect of weld parameters on mechanical properties & tensile behavior of tungsten inert gas welded AW6082-T6 aluminum alloy;Baskutis;Journal of Mechanical Science & Technology,2019

4. Optimization of tungsten inert gas welding parameter to attain maximum impact strength in AA6061 alloy joints using Taguchi technique;Mohanavel;Materials Today: Proceedings,2018

5. Investigation of microstructure & mechanical properties of TIG & MIG welding using aluminium alloy;Khotiyan;International Journal of Education & Science Research Review,2014

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