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Effect of External Heat Assistance on the Weld Quality of AA2024 Aluminium Alloy During Friction Stir Welding
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Friction Stir Welding is one of the advanced and efficient methods to join aluminium alloys. The efforts to increase its productivity may sometimes lead to defective welds. Because, the increased welding speed may result in lesser heat input, inferior material flow and voids. To overcome this, external heat assistance can be provided to the FSW operation. This preheating of the material before it comes in contact with the FSW tool ensures better softening and material flow. In this work, external heat assistance was given with the help of a TIG during the FSW of 3mm thick AA2024. The FSW without TIG heat assistance resulted in defect formation, whereas the TIG-assisted FSW gave a defect-free weld; increase in the tensile strength, ductility and hardness at SZ by 25.8%, 47.57% and 24%, respectively. This external heat assistance boosts the productivity and might broaden the parameter window of this process.
Keywords
Friction Stir Welding, TIG Preheating, Heat Assisted Friction Stir Welding (HAFSW), 2024 Aluminium Alloy, Defect Elimination.
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- Able, N., & Pfefferkorn, F. (2005). Laser-assisted friction stir lap welding of aluminum. Proceedings of the ASME Summer Heat Transfer Conference, 3, 425-429.
- Chaurasia, P. K., Pandey, C., Giri, A., Saini, N., & Mahapatra, M. M. (2018). A comparative study of residual stress and mechanical properties for fsw and tig weld on structural steel. Archives of Metallurgy and Materials, 63(2), 1019-1029.
- Choudhary, A. K., & Jain, R. (2021). Fundamentals of Friction Stir Welding, Its Application, and Advancements. Welding Technology, 41-90.
- El-Morsy, A. W., Ghanem, M., & Bahaitham, H. (2018). Effect of Friction Stir Welding Parameters on the Microstructure and Mechanical Properties of AA2024-T4 Aluminum Alloy. Engineering, Technology & Applied Science Research, 8(1), 2493-2498.
- Gao, S., Wu, C. S., & Padhy, G. K. (2017). Material flow, microstructure and mechanical properties of friction stir welded AA 2024-T3 enhanced by ultrasonic vibrations. Journal of Manufacturing Processes, 30, 385-395.
- Garg, A., Raturi, M., & Bhattacharya, A. (2019). Influence of additional heating in friction stir welding of dissimilar aluminum alloys with different tool pin profiles. In International Journal of Advanced Manufacturing Technology, 105(1-4), 155-175.
- Jain, R., Pal, S. K., & Singh, S. B. (2019). Investigation on effect of pin shapes on temperature, material flow and forces during friction stir welding: A simulation study. Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture, 233(9), 1980-1992.
- Liu, X. C., Wu, C. S., & Padhy, G. K. (2015). Improved weld macrosection, microstructure and mechanical properties of 2024Al-T4 butt joints in ultrasonic vibration enhanced friction stir welding. Science and Technology of Welding and Joining, 20(4), 345-352.
- Yi, T., Liu, S., Fang, C., & Jiang, G. (2022). Eliminating hole defects and improving microstructure and mechanical properties of friction stir welded joint of 2519 aluminum alloy via TIG arc. Journal of Materials Processing Technology, 310 (September), 117773.
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