Advertisement

Experimental Investigation and Numerical Analysis of Thermal Fields and Residual Stresses in Multi-pass GTA Welding of AA 6061T6 Plates

  • Narender Kumar
  • H. ChelladuraiEmail author
Conference paper
Part of the Lecture Notes on Multidisciplinary Industrial Engineering book series (LNMUINEN)

Abstract

Welding is one of the most widely used materials joining processes in the industries. Plates of different thicknesses used for the fabrication of components can be welded using multi-pass welding, depending upon the applications. However, residual stresses are induced in the welded joints due to the rapid heating and cooling, which leads to inhomogeneous distribution of dimensional changes and consequently the failure of welded joint occurs. This manuscript aims to predict temperature distribution and residual stresses during multi-pass butt joint on gas tungsten arc welding (GTAW) of aluminum alloy (AA) 6061T6 weldments. Transient thermal analysis and mechanical stress contour in three dimensions have been estimated considering three modes of heat transfer, i.e., conduction, convection, and radiation. Temperature-dependent properties such as thermal conductivity, heat capacity, yield stress, elastic modulus, and thermal expansion are employed in the welding simulations. The experimental results of temperature distribution in AA 6061T6 weldments are validated using ANSYS 18.1.

Keywords

Multi-pass welding GTAW Numerical simulation AA 6061T6 plates 

References

  1. 1.
    Manurung, H.P.Y., Lidem, R.N., Rahim, M.R., Zakaria, M.Y., Redza, M.R., Sulaiman, M.S., Tham, G., Abas, S.K.: Welding distortion analysis of multipass joint combination with different sequences using 3D FEM and experiment. Int. J. Press. Vessels Pip. 111–112, 89–98 (2013)CrossRefGoogle Scholar
  2. 2.
    Bajpei, T., Chelladurai, H., Ansari, M.Z.: Experimental investigation and numerical analyses of residual stresses and distortions in GMA welding of thin dissimilar AA5052-AA6061 plates. J. Manuf. Process. 25, 340–350 (2017)CrossRefGoogle Scholar
  3. 3.
    Jiang, Z., Xueming, H., Huang, L., Wu, D., Li, F.: Effect of multiple thermal cycles on metallurgical and mechanical properties during multi-pass gas metal arc welding of Al5083 alloy. Int. J. Adv. Manuf. Technol. 93, 3799–3811 (2017)CrossRefGoogle Scholar
  4. 4.
    Zubairuddin, M., Albert, S.K., Vasudeven, M., Mahadevan, S., Chaudhari, V., Suri, V.K.: Numerical simulation of multi-pass GTA welding of grade 91 steel. J. Manuf. Process. 27, 87–97 (2017)CrossRefGoogle Scholar
  5. 5.
    Murugan, S., Kumar, P.V., Raj, B., Bose, M.S.C.: Temperature distribution during multipass welding of plates. Int. J. Press. Vessels Pip. 75, 891–905 (1998) CrossRefGoogle Scholar
  6. 6.
    Vargas, J.A., Torres, J.E., Pacheco, J.A., Hernandez, R.J.: Analysis of heat input effect on the mechanical properties of Al-6061-T6 alloy weld joints. Mater. Des. 52, 556–564 (2013)CrossRefGoogle Scholar
  7. 7.
    Capriccioli, A., Frosi, P.: Multipurpose ANSYS FE procedure for welding processes simulation. Fusion Eng. Des. 84, 546–553 (2009)CrossRefGoogle Scholar
  8. 8.
    Varghese, V.M.J., Suresh, M.R., Kumar, D.S.: Recent developments in modeling of heat transfer during TIG welding—a review. Int. J. Adv. Manuf. Technol. 64, 749–754 (2013)CrossRefGoogle Scholar

Copyright information

© Springer Nature Singapore Pte Ltd. 2020

Authors and Affiliations

  1. 1.PDPM Indian Institute of Information Technology JabalpurJabalpurIndia

Personalised recommendations