Laser welding with and without filler wire of aluminum sheets produced by rolling and additive manufacturing for e-mobility applications
Alessandro Ascari, Erica Liverani, Alessandro Fortunato, Stefano Cattaneo, Marco Franzosidownload PDF
Abstract. One of the most critical factors to be taken into consideration in laser welding of aluminum alloys is the formation of pores in the fused zone, which depends strictly on the semi-finishing format of the parent sheets. According to these considerations the present paper deals with welding of AA6082 sheets with additively manufactured AlSi10 ones in a configuration that is typical for the production of casings for batteries for the e-mobility field. In order to understand the role of process strategies on weld bead quality, both autogenous welding and welding with filler wire are investigated and the eventual benefits of applying a wobbling beam shaping is also considered. For any of the above-mentioned strategies, the role of process parameters, such as laser power, welding speed, filler wire speed and wobbling, is underlined, with particular reference to the formation of pores and defects.
Laser Welding, Aluminum Alloys, E-Mobility
Published online 9/5/2023, 8 pages
Copyright © 2023 by the author(s)
Published under license by Materials Research Forum LLC., Millersville PA, USA
Citation: Alessandro Ascari, Erica Liverani, Alessandro Fortunato, Stefano Cattaneo, Marco Franzosi, Laser welding with and without filler wire of aluminum sheets produced by rolling and additive manufacturing for e-mobility applications, Materials Research Proceedings, Vol. 35, pp 258-265, 2023
The article was published as article 31 of the book Italian Manufacturing Association Conference
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 [Salminen, A., Kujanpää, V. P. and Moisio, T. J. I. “Interactions between laser beam and filler metal.” Welding Journal Vol. 75 (1996): pp. 9–13.
 Salminen, A. S. and Kujanpää, V. P. “Effect of wire feed position on laser welding with filler wire.” Journal of Laser Applications Vol. 15 No. 1 (2003): pp. 2–10. https://doi.org/10.2351/1.1514220
 Grünenwald, S., Kujanpää, V. and Salminen, A. “Nd:YAG laser welding of 5083 aluminum alloy using filler wire.” International Congress on Applications of Lasers & Electro-Optics 2007, Vol. 4831: pp. 562 – 569. 2007. Laser Institute of America, LIA. https://doi.org/10.2351/1.5060979
 Pinto, L. A., Quintino, L., Miranda, R. M. and Carr, P. “Laser Welding of Dissimilar Aluminium Alloys with Filler Materials.” Welding in the world Vol. 54 (2010): pp. 333–341. https://doi.org/10.1007/BF03266747
 Vollertsen, F., Buschenhenke, F. and Seefeld, T. “Reduction of Hot Cracking in LaserWelding using Hypereutectic AlSi FillerWire.” Welding in the world Vol. 52 (2008): pp. 3–8. https://doi.org/10.1007/BF03266635
 Yu, Y., Huang, W., Wang, G., Wang, J., Meng, X., Wang, C., Yan, F., Hu, X. and Yu, S. “Investigation of melting dynamics of filler wire during wire feed laser welding.” Journal of Mechanical Science and Technology Vol. 27 (2013): pp.1097–1108. https://doi.org/10.1007/s12206-013-0218-4
 Schultz, V. “Process Stability during Laser Beam Welding with Beam Oscillation and Wire Feed.” Journal of Manufacturing and Materials Processing Vol. 3 No. 1 (2019): pp. 1–16. https://doi.org/10.3390/jmmp3010017
 Enz, J., Riekehr, S., Ventzke, V., Sotirov, N. and Kashaev, N. “Laser Welding of High-strength Aluminium Alloys for the Sheet Metal Forming Process.” Procedia CIRP Vol. 18 (2014): pp. 203–208. v10.1016/j.procir.2014.06.132
 Adisa, S. B., Loginova, I., Khalil, A. and Solonin, A. “Effect of Laser Welding Process Parameters and Filler Metals on the Weldability and the Mechanical Properties of AA7020 Aluminium Alloy.” Journal of Manufacturing and Materials Processing Vol. 2 No. 2 (2018): pp. 1–10. https://doi.org/10.3390/jmmp2020033
 Xu, F., Chen, E. G., L. andHe and Guo, L. Y. “Laser welding 6A02 aluminum alloy with filler wire under high welding speed.” IOP Conference Series: Materials Science and Engineering Vol. 504 No. 1 (2019): p. 012028. https://doi.org/10.1088/1757-899X/504/1/012028
 Li, S., Mo, B., Xu, W., Xiao, G. and Deng, X. “Research on nonlinear prediction model of weld forming quality during hot-wire laser welding.” Optics & Laser Technology Vol. 131 (2020): p. 106436. https://doi.org/10.1016/j.optlastec.2020.106436
 Examilioti, T. N., Kashaev, N., Ventzke, V., Klusemann, B. and Alexopoulos, N. D. “Effect of filler wire and post weld heat treatment on the mechanical properties of laser beam welded AA2198.” Materials Characterization Vol. 178 (2021): p. 111257. https://doi.org/10.1016/j.matchar.2021.111257
 Huang, W., Chen, S., Xiao, J., Jiang, X. and Jia, Y. “Investigation of filler wire melting and transfer behaviors in laser welding with filler wire.” Optics & Laser Technology Vol. 134 (2021): p. 106589. https://doi.org/10.1016/j.optlastec.2020.106589
 Feng, L., Gao, J., Liu, F., Liu, F., Huang, C., Zheng, Y. “Effect of grain orientation on microstructure and mechanical properties of laser welded joint of additive manufactured 300M steel”. Materials Today Communications Vol. 35 (2023): p. 105497. https://doi.org/10.1016/j.mtcomm.2023.105497.
 Ascari, A., Fortunato, A., Liverani, E., Gamberoni, A., & Tomesani, L. “New Possibilities in the Fabrication of Hybrid Components with Big Dimensions by Means of Selective Laser Melting (SLM)”. Physics Procedia Vol. 83 (2016): p. 839–846. https://doi.org/10.1016/j.phpro.2016.08.087
 Ceglarek, D., Colledani, M., Váncza, J., Kim, D.-Y., Marine, C., Kogel-Hollacher, M., Mistry, A. and Bolognese, L. “Rapid deployment of remote laser welding processes in automotive assembly systems.” CIRP Annals Vol. 64 No. 1 (2015): pp. 389–394. https://doi.org/10.1016/j.cirp.2015.04.119
 Franciosa, P., Sun, T., Ceglarek, D., Gerbino, S. and Lanzotti, A. “Multi-wave light technology enabling closed-loop in-process quality control for automotive battery assembly with remote laser welding.” Stella, Ettore (ed.). Multimodal Sensing: Technologies and Applications, Vol. 11059: p. 110590A. 2019. International Society for Optics and Photonics, SPIE. https://doi.org/10.1117/12.2526075
 Sun, T., Franciosa, P., Sokolov, M. and Ceglarek, D. “Challenges and opportunities in laser welding of 6xxx high strength aluminum extrusions in automotive battery tray construction.” Procedia CIRP Vol. 94 (2020): pp. 565–570. https://doi.org/10.1016/j.procir.2020.09.076
 Ramiarison, H., Barka, N., Pilcher, C., Stiles, E., Larrimore, G., Amira S. “Weldability improvement by wobbling technique in high power density laser welding of two aluminum alloys: Al-5052 and Al-6061”. Journal of Laser Applications 1 August 2021; 33 (3): 032015. https://doi.org/10.2351/7.0000353
 Zhao, J., Jiang, P., Geng, S., Guo, L., Wang, Y., Xu, B. “Experimental and numerical study on the effect of increasing frequency on the morphology and microstructure of aluminum alloy in laser wobbling welding”. Journal of Materials Research and Technology Vol. 21 (2022): pp. 267-282. https://doi.org/10.1016/j.jmrt.2022.09.008