Optimization of Spot Welding Parameters in Similar and Dissimilar Alloys AISI-321 and Inconel-X750 Alloys

Abstract:

A series of experiments were conducted to optimize the welding of similar and dissimilar alloys i.e AISI-321 with AISI-321, Inconel-X750 with AISI-321 and Inconel-X750 with Inconel-X750. Single phase rectification type resistance spot welding machine was utilized for this purpose. Breaking load against different welding parameters was observed. Further, the defects of the welded zone were also studied by optical and stereo microscopes. It was noted that the welding current, welding time and the welding force play an effective role in the strength of the welding joint and the spot welding of Inconel-X750 with AISI-321 can be possible if the welding parameters are carefully selected.

• Periodical: Key Engineering Materials (Volume 778)
• Pages: 9-15
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.778.9
• Online since: September 2018
• Authors: Mudassir Rauf*, Aamir Nusair Khan, Iftichar Us Salam, Rehan Qayyume, Shaheed Khan
• Keywords: Dissimilar Alloys Welding, Inconel-X750, Spot Welding, Welding Parameters

References

[1] S. Agashe, and H. Zhang, Selection of schedules based on heat balance in resistance spot welding. Weld. J. 82 (2003) 179-s-183-s.

[2] X. Sun, E.V. Stephens, R.W. Davies, M.A. Khaleel, and D.J. Spinella, Effects of fusion zone size on failure modes and static strength of aluminum resistance spot welds. Weld. J., 83 (2004) 308-s- 318-s.

DOI: 10.4271/2005-01-0906

[3] Y. Y. Zhao, Y. S. Zhang, and Pei-Chung Wang, Weld Formation Characteristics in Resistance Spot Welding of Ultra-Thin Steel. Weld. J., 96 (2017) 71s-82s.

[4] R.F. Nunes, B.L. Alia, R.L. Alley et al. Welding Brazing and Soldering, ASM Hand Book (soft version), ASM International, Materials Park, Ohio, volume-6 (1993) 684-672.

[5] P P Choughule, A K Biradar, A K Modi., Resistance Spot Weldability of Dissimilar Materials in 1 Mm Thick Sheet, J. Mech. Eng. Tech., 4 (2016) 15-21.

[6] Manoj Raut, Vishal Achwal., Optimization of Spot Welding Process Parameters for Maximum Tensile Strength, Int. J. Mech. Eng. Rob. Res., 3 (2014) 506-517.

[7] J. N. DuPont, J.C. Lippold, S. D. Kiser, Welding Metallurgy and Weldability of Ni base superalloys, John Wiley and Sons Inc, Hoboken, New Jersey, (2009).

DOI: 10.1002/9780470500262

[8] M.J. Donachie and S. Donachie, Superalloys a Technical Guide, 2nd edition, ASM Inter. Materials Park, Ohio, (2002), 8.

[9] Alejandro Hinojos, Jorge Mireles, Ashley Reichardt, Pedro Frigola, Peter Hosemann, Lawrence E. Murr, Ryan B.Wicker., Joining of Inconel 718 and 316 Stainless Steel using electron beam melting additive manufacturing technology, Mater. Desin., 94 (2016).

DOI: 10.1016/j.matdes.2016.01.041

[10] S. Aslanlar, The effect of button size on mechanical properties in electrical resistance spot welding of sheets used in automotive industry. Mater. Desig., 27 (2006) 125-s - 131-s.

DOI: 10.1016/j.matdes.2004.09.025

[11] M. Kimchi, Spot weld properties when welding with expulsion — A comparative study. Weld. J., 63 (1984) 58-s - 63-s.

[12] H. E. Emre And R. Kaçar., Resistance Spot Weldability of Deformed TRIP800 Steel, Weld. J., 95 (2016) 77s-85s.