Experimental Investigation of SS-304 by using Orbital Welding with A-TIG Process

Akhilesh Kumar; Vivek Jain; Dheeraj Gupta  and Mohit Agrawal

doi:10.17485/ijst/2017/v10i31/113892

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Experimental Investigation of SS-304 by using Orbital Welding with A-TIG Process

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Indian Journal of Science and Technology

DOI: 10.17485/ijst/2017/v10i31/113892

Year: 2017, Volume: 10, Issue: 31, Pages: 1-6

Original Article

Experimental Investigation of SS-304 by using Orbital Welding with A-TIG Process

Akhilesh Kumar¹ , Vivek Jain¹ , Dheeraj Gupta¹ and Mohit Agrawal²

¹Department of Mechanical Engineering, Thapar University, Patiala – 147004, Punjab India; [email protected], [email protected], [email protected] ²Department of Welding, DEE piping systems, Tatarpur – 121102, Haryana, India; [email protected]

This work is licensed under a Creative Commons Attribution 4.0 International License.

Abstract

Tungsten Inert Gas (TIG) welding is the mostly used fabrication technique used for joining stainless steel pipe in industry. By this process limited Depth of Penetration (DOP) can be achieved in a single pass. To overcome this problem, the current, speed and flow rate needs to be significantly changed and it will effect productivity. Therefore Activated TIG welding (A-TIG) is explored in the present study. The effect of hybrid mixture is evaluated in terms of DOP on AISI 304 by an automatic orbital welding setup. Hence a mathematical modelling is being done DOP by varying thickness, current, travel speed, and flow rate. A Leica microscope is used to capture the image of microstructure of weld bead. The result shows that a significant increase in DOP and width to penetration ratio by increasing the current for higher thickness after using of activated flux.

Keywords: Activated Flux, Current, Depth of penetration (DOP), Lorentz Force, Marangoni Effect, Shielding Gas, Stainless Steels, TIG welding