Indian Journal of Science and Technology

Open Access Open Access  Restricted Access Subscription Access

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


Affiliations
1 Department of Mechanical Engineering, Thapar University, Patiala – 147004, Punjab, India
2 Department of Welding, DEE piping systems, Tatarpur – 121102, Haryana,, India
 

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
User

Abstract Views: 140

PDF Views: 0




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

Abstract Views: 140  |  PDF Views: 0

Authors

Akhilesh Kumar
Department of Mechanical Engineering, Thapar University, Patiala – 147004, Punjab, India
Vivek Jain
Department of Mechanical Engineering, Thapar University, Patiala – 147004, Punjab, India
Dheeraj Gupta
Department of Mechanical Engineering, Thapar University, Patiala – 147004, Punjab, India
Mohit Agrawal
Department of Welding, DEE piping systems, Tatarpur – 121102, Haryana,, India

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



DOI: https://doi.org/10.17485/ijst%2F2017%2Fv10i31%2F158421