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Investigation on the Weldability, Mechanical and Metallurgical Properties of Activated Tig Weldments of Aluminium Alloy 7075

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Abstract:

Tungsten Inert Gas Welding (TIG) is a welding process that has low weld penetration and low heat intensity of the electric arc. This affects the low productivity of processes. To overcome this drawback, Activated Tungsten Inert Gas Welding has been developed. This study investigates Al-7 series plates using the A-TIG welding process. Different kinds of fluxes, TiO2 and Al2O3 are used with a ratio of 1:1 mixture of both these powders. This mixture was applied on Al-7075 plates to enhance weld characteristics. Activated flux has been used to improve the weld depth. The effects of various process parameters (welding current (I), welding speed(V), and gas flow rate were analysed and compared with the TIG welding method. Activated Tungsten Inert Gas (A-TIG) welding canincrease the joint penetration and weld depth width ratio compared to conventional TIG welding. The main objective of this work is to enhance weld penetration, improve mechanical properties (tensile strength and elongation), and assess metallurgical changes in Al-7075 joints using A-TIG welding with TiO₂ and Al₂O₃ mixed fluxes.

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Periodical:

Key Engineering Materials (Volume 1037)

Pages:

25-32

DOI:

https://doi.org/10.4028/p-18lODn

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Online since:

January 2026

Authors:

S. Rajkumar*, K. S. Aadhityaa, E. Venkatachalam, M. Vasanthraj

Keywords:

Activated Flux, Aluminium Alloy, A-TIG, Penetration

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© 2026 Trans Tech Publications Ltd. All Rights Reserved

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References

[1] Patel and Jani (2020) developed an artificial neural network model to predict weld bead characteristics during GMAW of nitrogen-strengthened austenitic stainless steel.

DOI: 10.1063/1.5117936

Google Scholar

[2] Singh et al. (2020) investigated the weld bead geometry and process parameter optimization in GMAW using statistical modeling and artificial intelligence techniques.

Google Scholar

[3] Ahmed (2005) compiled advanced developments in welding technology, covering novel processes, materials, and automation strategies relevant to modern manufacturing.

DOI: 10.1533/9781845690892

Google Scholar

[4] Tseng, K.H., Chen, K.L. (2012). Comparisons between TiO2 and SiO2 flux assisted TIG welding processes. Journal of Nanoscience and Nanotechnology, 12: 6359-6367

DOI: 10.1166/jnn.2012.6419

Google Scholar

[5] Ahmadi E, Ibrahim A.R. "The effect of activating fluxes on 316L stainless steel weld joint characteristic in TIG welding using the Taguchi method"

Google Scholar

[6] Chern TS, Tseng KH, Tsai HL (2011) "Study of the characteristics of duplex stainless steel activated tungsten inert gas welds." 255-63.

DOI: 10.1016/j.matdes.2010.05.056

Google Scholar

[7] Chuang K-J (2012) "Application of iron-based powders in tungsten inert gas welding for 17Cr–10Ni–2Mo alloys" Powder Technology 228 36–46

DOI: 10.1016/j.powtec.2012.04.047

Google Scholar

[8] Harikannan N, Magudeeswaran G, Nair S.R, Sundar. (2014) "Optimization of process parameters of the activated tungsten inert gas welding for aspect ratio of UNS S32205 duplex stainless steel welds" Defence Technology xx 1-10.

DOI: 10.1016/j.dt.2014.06.006

Google Scholar

[9] Ming X., Qin X., Zhang Y., Fu B., Zou Z (2014) "High speed TIG–MAG hybrid arc welding of mild steel plate" Journal of Materials Processing Technology 214 2417–2424

DOI: 10.1016/j.jmatprotec.2014.05.020

Google Scholar

[10] Nogi K, Fujii H, Sato T, Lu SP (2008) "Development of an advanced A- TIG (AA-TIG) welding method by control of Marangoni convection." Mater Sci Eng a; 495(1-2):296-303.

DOI: 10.1016/j.msea.2007.10.116

Google Scholar

[11] Tsai HL (2011) "Study of the characteristics of duplex stainless steel activated tungsten inert gas welds. 255-63.

DOI: 10.1016/j.matdes.2010.05.056

Google Scholar

[12] Tseng K.H (2012) "Application of iron-based powders in tungsten inert gas welding for 17Cr–10Ni–2Mo alloys" Powder Technology 228 36–46

DOI: 10.1016/j.powtec.2012.04.047

Google Scholar

[13] Vasudevan M (2012), Vasantharaja P (2011) Studies on A-TIG welding of Low Activation Ferritic/Martensitic (LAFM) steel" Journal of Nuclear Materials 421 117–123

DOI: 10.1016/j.jnucmat.2011.11.062

Google Scholar

[14] Vishvesh J. Badheka, Sanjay G. Nayeen (2014)."Effect of oxide-based fluxes on mechanical and metallurgical properties of Dissimilar Activating Flux Assisted-Tungsten Inert Gas Welds" Journal of Manufacturing Processes 137–143.

DOI: 10.1016/j.jmapro.2013.11.001

Google Scholar

[15] Silva et al. (2023) investigated TIG welding on Al alloys using activated fluxes and reported significant penetration improvement.

DOI: 10.1590/1980-5373-MR-2023-0495

Google Scholar

[16] Gnanasekaran et al. (2022) explored the microstructure of TIG welds on high-strength aluminum using TiO₂ flux.

DOI: 10.1590/1980-5373-MR-2022-0365

Google Scholar

[17] Li et al. (2024) studied arc behavior and Marangoni effect in flux-assisted aluminum welds DOI.:.

DOI: 10.1088/2053-1591/ad5cdc

Google Scholar

[18] Reddy et al. (2024) demonstrated optimization of A-TIG welding parameters for aerospace-grade Al alloys.

DOI: 10.1007/978-981-97-7071-7_34

Google Scholar