This is an unedited manuscript accepted for publication and provided as an Article in Press for early access at the author’s request. The article will undergo copyediting, typesetting, and galley proof review before final publication. Please be aware that errors may be identified during production that could affect the content. All legal disclaimers of the journal apply.
Journal Menu
By: Manujesh B J.
1Department of Mechanical Engineering, VCET, Nehru Nagar, Puttur, D.K, Karnataka, India – 574203.
Abstract – This experimental study presents a comprehensive investigation into the tensile strength of TIG-welded butt joints made from Al-2014 alloy, a material that find applications in aerospace and structural engineering due to its excellent machinability and high strength to weight ratio. Welding Al-2014 alloy is challenging because it is more prone to hot cracking, oxide layer formation and thermal distortion. Therefore, it is very important to optimize welding parameters and joint design to obtain reliable welded structures. According to this viewpoint, the goal of this work is to comprehend how the groove angle affects the tensile strength of TIG-welded joints. The research specifically explores the impact of varying groove angles 45°, 60°, and 75° on the tensile strength of the welded joints. Specimens were carefully prepared using Al-2014 plates, confirming consistent dimensions and surface preparation to minimize experimental variations. Tungsten Inert Gas (TIG) welding was used under controlled welding parameters to keep uniform weld quality across all test samples. The same process conditions were applied for each specimen having a particular grove angle in order to accurately assess the effect of angle alone. The experimental procedure involves conducting a series of tensile tests on TIG-welded butt joints of Al-2014 alloy, fabricated using different combinations of V-groove butt welding. The prepared specimens were subjected to standard tensile test on a Universal Testing Machine in accordance with relevant testing standards, and key parameters such as yield strength, ultimate tensile strength, etc. were recorded. The fracture surfaces of the tested specimens were also examined to identify the mode of failure and to understand the metallurgical characteristics influencing joint performance. The tensile test results were analyzed to evaluate the influence of welding angle on the strength of the welded joints. The findings of this study offer valuable insights into the optimization of TIG welding processes for Al-2014 alloy, contributing to the development of high-strength welded joints for various engineering applications.
Keywords— TIG welding, Al-2014 alloy, tensile strength, welding angle, butt joints, V-groove.
Citation:
Refrences:
1. S. Rajesh, M. K. Prasad, and V. R.
Reddy, “Impact behaviour of Al-2014
wrought alloy using Split-Hopkinson
pressure bar (SHPB): Influence on
mechanical and microstructural
properties,” Materials Science and
Engineering A, 2024.
2. H. B. Cary and S. C. Helzer, Modern
Welding Technology, 6th ed. Upper
Saddle River, NJ, USA: Pearson, 2005.
3. K. S. Prasanna, M. R. Ramesh, and
others, “Effect of welding parameter on
mechanical properties of TIG welded
AA6061,” Materials Today: Proceedings,
vol. 37, pp. 2126–2131, 2021.
4. S. R. Venkatesh et al., “The
microstructure and mechanical
properties of TIG-welded aerospace
dissimilar aluminium alloys,” Materials
Today: Proceedings, vol. 46, pp.
658–664, 2021.
5. J.-L. Song, S.-B. Lin, C.-L. Yang, and C.-
L. Fan, “Spreading behavior and
microstructure characteristics of
dissimilar metals TIG welding–brazing
of aluminum alloy to stainless steel,”
Materials Science and Engineering A,
vol. 509, nos. 1–2, pp. 31–40, 2009, doi:
10.1016/j.msea.2009.02.036.
6. A. Azwinur and S. Syukran, “Effect of
welding current on tensile strength and
hardness of TIG welded aluminum 6061
joints,” International Journal of
Mechanical Engineering and
Technology, vol. 9, no. 11, pp.
1324–1331, 2018.
7. Z. Wan, Z. Yi, Y. Zhao, S. Zhang, Q. Li, J.
Lin, and A. Wu, “Improvement on the
tensile properties of 2219-T8 aluminum
alloy TIG welding joint with weld
geometry optimization,” Journal of
Manufacturing Processes, vol. 67, pp.
275–285, Jul. 2021, doi:
10.1016/j.jmapro.2021.04.062.
8. W. G. Wang, et al., “Effects of weld
reinforcement on tensile behavior and
mechanical properties of 2219-T87
aluminum alloy TIG welded joints,”
Transactions of Nonferrous Metals
Society of China, vol. 27, no. 1, pp.
10–16, Jan. 2017, doi: 10.1016/S1003-
6326(17)60002-5.
9. Pankaj Sharma, Ramandeep Singh and
Rajdeep Singh, “Experimental
Investigation of Various Welding
Parameters on TIG Welding of
Aluminium Alloy-2014, “International
Journal for Innovative Research in
Science & Technology” Volume 4, Issue
2, July 2017.
10. Sathish, T., Tharmalingam, S.,
Mohanavel, V., Ashraff Ali, K. S.,
Karthick, Alagar, Ravichandran, M.,
Rajkumar, Sivanraju, Weldability
Investigation and Optimization of
Process Variables for TIG-Welded
Aluminium Alloy (AA 8006), Advances
in Materials Science and Engineering,
2021, 2816338, 17 pages, 2021.
https://doi.org/10.1155/2021/2816338 .
11. Hongchao Ji, Yang Hu, Rongdi Yu,
Shengqiang Liu, Weichi Pei, Baoyu
Wang, Experimental study on TIG full
welding and single pass welding quality
of 6061-T6 aluminum alloy sheet,
“Journal of Materials Research and
Technology”, Volume 27, 2023, Pages
5965-5976.
12. P. M. Pai, B. H. Maruthi Prashanth, C.
V. Pujar, P. N. Adithya, J. P., and F. P.
A., “Comparison of the tensile strength
of V-grooved butt-welded aluminium
alloys,” Proceedings of the International Conference on Emerging
Science and Engineering Technologies
(ICEST), Mangaluru, India, 2023.
13. M. A. Wahab, “The effects of welding
parameters on the tensile strength of
TIG-welded aluminum alloys,” Journal
of Materials Processing Technology,
vol. 77, no. 1–3, pp. 263–268, 1998.