Experimental Investigation on Micro Structure and Mechanical Behavior of AA 6063 - 7075 Dissimilar joint using Activated TIG Welding

Authors

  • Rajiv Kumar  Research Scholar, UIET, Panjab university, Chandigarh, India
  • Harmesh Kumar Kansal  Professor, UIET, Panjab university, Chandigarh, India
  • S. C. Vettivel  CCET (Degree Wing), Chandigarh, India

Keywords:

TIG welding, Activated TIG welding, Microstructure, Flux

Abstract

This paper is mainly focused on the Activated Tungsten Inert gas welding (ATIG) characterization and mechanical behavior of AA 6063 - 7075 dissimilar joint using TiO2 flux with the filler of AA 5356 and compared with conventional TIG. The characterization of the Base Material (BM), Fusion Zone (FZ), Heat Effected Zone (HAZ) and partially melted zone are carried out using the Optical Microscope. The quality of the weld is characterized using Ultrasonic assisted non destructive evaluation. A-Scan result confirms that the ATIG welded samples having more DOP and less bead width as compared to conventional TIG. The recorded tensile strength of conventional TIG and ATIG welded with flux (TiO2) sample 135 and 173 MPa respectively.

References

  1. Rajiv Kumar, SC Vettivel, Harmesh Kumar Kansal, “Effect of SiO2 flux on the depth of penetration, microstructure, texture and mechanical behavior of AA6063 T6 aluminum alloy using activated TIG welding” Bulletin of the Polish Academy of Sciences: Technical Sciences, Vol. 69(1), 2021, pages 1-8, Article number: e136215 DOI: 10.24425/bpasts.2020.136215.
  2. H. Li, J. Zou, J. Yao, H. Peng, The effect of TIG welding techniques on microstructure, properties and porosity of the welded joint of 2219 aluminum alloy, J. Alloys Compd. 727 (2017) 531–539. doi:10.1016/j.jallcom.2017.08.157.
  3. P. Mukhopadhyay, Alloy Designation, Processing, and Use of AA6XXX Series Aluminium Alloys, ISRN Metall. 2012 (2012) 1–15. doi:10.5402/2012/165082.
  4. B. Choudhury, M. Chandrasekaran, Investigation on welding characteristics of aerospace materials - A review, Mater. Today Proc. 4 (2017) 7519–7526. doi:10.1016/j.matpr.2017.07.083.
  5. R.R. Ambriz, V. Mayagoitia, I.P.N. Ciitec-ipn, Welding of Aluminum Alloys, Welding, Brazing Solder. (2018) 722–739. doi:10.31399/asm.hb.v06.a0001436.
  6. P.J. Modenesi, The chemistry of TIG weld bead formation, Weld. Int. 29 (2015) 771–782. doi:10.1080/09507116.2014.932990.
  7. A.K. Singh, V. Dey, R.N. Rai, Techniques to improveweld penetration in TIG welding (A review), Mater. Today Proc. 4 (2017) 1252–1259. doi:10.1016/j.matpr.2017.01.145.
  8. R.S. Vidyarthy, D.K. Dwivedi, Activating flux tungsten inert gas welding for enhanced weld penetration, J. Manuf. Process. 22 (2016) 211–228. doi:10.1016/j.jmapro.2016.03.012.
  9. R.S. Vidyarthy, D.K. Dwivedi, Microstructural and mechanical properties assessment of the P91 A-TIG weld joints, J. Manuf. Process. 31 (2018) 523–535. doi:10.1016/j.jmapro.2017.12.012.
  10. K.D. Ramkumar, V. Varma, M. Prasad, N.D. Rajan, N.S. Shanmugam, Effect of activated flux on penetration depth, microstructure and mechanical properties of Ti-6Al-4V TIG welds, J. Mater. Process. Technol. 261 (2018) 233–241. doi:10.1016/j.jmatprotec.2018.06.024.
  11. H. Kumar, N.K. Singh, Performance of activated TIG welding in 304 austenitic stainless steel welds, Mater. Today Proc. 4 (2017) 9914–9918. doi:10.1016/j.matpr.2017.06.293.
  12. R.S. Vidyarthy, A. Kulkarni, D.K. Dwivedi, Study of microstructure and mechanical property relationships of A-TIG welded P91–316L dissimilar steel joint, Mater. Sci. Eng. A. 695 (2017) 249–257. doi:10.1016/j.msea.2017.04.038.
  13. B. Wu, B. Wang, X. Zhao, H. Peng, Effect of active fluxes on thermophysical properties of 309L stainless-steel welds, J. Mater. Process. Technol. 255 (2018) 212–218. doi:10.1016/j.jmatprotec.2017.12.018.

International Journal of Scientific Research in Science, Engineering and Technology

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Published

2023-01-30

Issue

Volume 10, Issue 1, January-February-2023

Section

Research Articles

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

How to Cite

[1]
Rajiv Kumar, Harmesh Kumar Kansal, S. C. Vettivel "Experimental Investigation on Micro Structure and Mechanical Behavior of AA 6063 - 7075 Dissimilar joint using Activated TIG Welding" International Journal of Scientific Research in Science, Engineering and Technology (IJSRSET), Print ISSN : 2395-1990, Online ISSN : 2394-4099, Volume 10, Issue 1, pp.66-73, January-February-2023.