Study of Welding process parameter in TIG joining of Aluminum Aolly (6061)

The present investigations aims to improve weld characteristics of Aluminum (Al-6001) plate using a pulsed TIG welding. The welding speed of the current study has been controlled by PUG machine coupled with TIG machine for automatic operation. The similar welding of the of Al-6001 plate have been performed by varying welding process parameters for full depth of penetration. Single side welding of Al-6001 plate has been studied. The influence of welding current & welding speed on the weld characteristics of the welded joint have been studied. The weld zone features have been analyzed with the microstructure images using Optical Microscopic and SEM (Scanning electron microscope) and on the other hand different phases have been characterized using XRD (X-ray diffraction) analysis. The hardness variation across the weld zone has also been quantified to study the change in mechanical property of the welded zone.