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Microstructural Investigations on Built-Up Cold-Formed Steel Beams Welded by MIG Brazing

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Abstract:

Lightweight steel structural systems like trusses or built-up beams, made of thin gage steel elements, are highly efficient, with ease of handling and construction. Self-drilling screws are commonly used for connecting thin-walled elements, but the time and manpower required for numerous connections necessitate an improved solution. One possible solution is to use welding technology, but the conventional methods are not suitable for joining thin sheets. Manufacturing defect-free, mechanically sound welding joints remains challenging due to defects like porosity and undesired microstructural phases in the heat-affected (HAZ) and fusion zones (FZ). Conventional welding processes increase heat input, causing difficult challenges. Brazing, a relatively new joining process, offers the advantages of lower heat input for thin and zinc-coated steel sheets. Therefore, the paper aims to present the effect of MIG brazing parameters on the macro-and microstructural properties of Cu-Al-based weld seams manufactured for joining thin sheets with thickens in the range of 0.8-2 mm. The weld seams were manually fabricated using a MEGAPULS FOCUS 330 compact equipped with TBI XP 363S/4m welding torch, focusing on optimal welding regimes. The macro-and microstructures of the joints were evaluated along with the mechanical properties in terms of hardness, confirming that MIG brazing is a promising method for manufacturing lightweight steel structural systems.

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Periodical:

Key Engineering Materials (Volume 1030)

Pages:

49-55

DOI:

https://doi.org/10.4028/p-7qWHin

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Online since:

November 2025

Authors:

Iosif Hulka, Bogdan Radu*, Viorel Ungureanu, Nicuşor Alin Sîrbu

Keywords:

Hardness, Lightweight Structural Systems, Microstructure, MIG Brazing

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© 2025 Trans Tech Publications Ltd. All Rights Reserved

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* - Corresponding Author

References

[1] V. Ungureanu, I. Both, M. Burca, B. Radu, C. Neagu, and D. Dubina, Experimental and numerical investigations on built-up cold-formed steel beams using resistance spot welding, Thin-Walled Struct., vol. 161 (2021).

DOI: 10.1016/j.tws.2021.107456

Google Scholar

[2] I. Both, V. Ungureanu, D. Tunea, A. Crisan, and M. Grosan, Experimental and Numerical Investigations on Cold- Formed Steel Beams Assembled By Mig Brazing, International Conference on Engineering Research and Practice for Steel Construction (2018).

DOI: 10.4995/asccs2018.2018.7169

Google Scholar

[3] Y. Li, C. Chen, R. Yi, and Y. Ouyang, Review: Special brazing and soldering, J. Manuf. Process., vol. 60, (2020) 608–635.

DOI: 10.1016/j.jmapro.2020.10.049

Google Scholar

[4] J. Viňáš, L. Kaseak, and M. Greš, Optimization of resistance spot welding parameters for microalloyed steel sheets, Open Eng., vol. 6, (2019) 504–510.

DOI: 10.1515/eng-2016-0069

Google Scholar

[5] S. S. Sravanthi, S. G. Acharyya, P. P. Phani, and G. Padmanabham, Integrity of 5052 Al-mild steel dissimilar welds fabricated using MIG-brazing and cold metal transfer in nitric acid medium, J. Mater. Process. Technol., vol. 268, (2019) 97–106.

DOI: 10.1016/j.jmatprotec.2019.01.010

Google Scholar

[6] Y. Miao, Z. Ma, X. Yang, J. Liu, and D. Han, Experimental study on microstructure and mechanical properties of AA6061/Ti-6Al-4V joints made by bypass-current MIG welding-brazing, J. Mater. Process. Technol., vol. 260, (2018) 104–111.

DOI: 10.1016/j.jmatprotec.2018.05.019

Google Scholar

[7] M. Shome, Metal inert gas (MIG) brazing and friction stir spot welding of advanced high-strength steels (AHSS), Welding and Joining of Advanced High Strength Steels (AHSS), Elsevier (2015) 137–165.

DOI: 10.1016/b978-0-85709-436-0.00008-4

Google Scholar

[8] H. Zhang and J. Liu, Microstructure characteristics and mechanical property of aluminum alloy/stainless steel lap joints fabricated by MIG welding-brazing process, Mater. Sci. Eng. A, vol. 528, (2011) 6179–6185.

DOI: 10.1016/j.msea.2011.04.039

Google Scholar

[9] J. Górka, M. Kciuk, and E. Figzał, Attempts of braze welding galvanized steel with a trifocal multi-beam laser system, Weld. Technol. Rev., vol. 91, (2019).

DOI: 10.26628/wtr.v91i9.1062

Google Scholar

[10] L. Quintino, G. Pimenta, D. Iordachescu, R. M. Miranda, and N. V. Pépe, MIG brazing of galvanized thin sheet joints for automotive industry, Mater. Manuf. Process., vol. 21, (2006) 63–73.

DOI: 10.1081/amp-200060621

Google Scholar

[11] D. Iordachescu, L. Quintino, R. Miranda, and G. Pimenta, Influence of shielding gases and process parameters on metal transfer and bead shape in MIG brazed joints of the thin zinc coated steel plates, Mater. Des., vol. 27, (2006) 381–390.

DOI: 10.1016/j.matdes.2004.11.010

Google Scholar

[12] M. Kai et al., Influence of wire feeding speed on laser brazing zinc-coated steel with Cu-based filler metal, Int. J. Adv. Manuf. Technol., vol. 76, (2015) 1333–1342.

DOI: 10.1007/s00170-014-6347-9

Google Scholar

[13] U. Reisgen, M. Angerhausen, A. Pipinikas, T. Twiehaus, V. Wesling, and J. Barthelmie, The effect of arc brazing process parameters on the microstructure and mechanical properties of high-strength steel HCT780XD using the copper-based filler metal CuAl8, J. Mater. Process. Technol., vol. 249 (2017) 549–558.

DOI: 10.1016/j.jmatprotec.2017.06.040

Google Scholar

[14] J. Singh, K. Singh Arora, and D. Kumar Shukla, High cycle fatigue performance of cold metal transfer (CMT) brazed C-Mn-440 steel joints, Int. J. Fatigue, vol. 137, (2020).

DOI: 10.1016/j.ijfatigue.2020.105663

Google Scholar

[15] G. Nandan, G. Kumar, K. S. Arora, and A. Kumar, MIG and CMT brazing of aluminum alloys and steel: A review, Mater. Today Proc., vol. 56 (2022) 481–488.

DOI: 10.1016/j.matpr.2022.02.166

Google Scholar

[16] F. Varol, U. Ozsarac, S. Aslanlar, A. Onat, M. Ekici, and E. Ferik, Influence of current intensity and heat input in MIG-brazed joints of DP 600 thin zinc coated steel plates, Acta Phys. Pol. A, vol. 127, no. 4 (2015) 968–971.

DOI: 10.12693/aphyspola.127.968

Google Scholar