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Experimental and numerical investigations of 2A16 aluminium and pure copper magnetically assisted dissimilar laser wire feed welding brazing

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Abstract

Magnetic field–assisted welding has been found to have a valuable function in significantly improving properties of weld bead. This paper presents a full-factor experiment for coaxial magnetic field–assisted welding to investigate the mechanism of the influence of magnetic field on the dissimilar laser wire feed weld brazing profile of aluminium and copper. Additionally, a three-dimensional numerical simulation model was built to analyze the influence of magnetic field on the weld bead. It was found that as the magnetic flux density increased from 10 to 50 mT, the properties of the weld bead were improved significantly, the wetting angle decreased from 53 to 26°, and the main fluid flow direction of the weld bead changed into a horizontal direction. Meanwhile, EDS and XRD results showed that the main intermetallic compounds (IMC) of Al2Cu and CuZn composition changed to Al4.2Cu3.2Zn0.7 in welding beads. Computed and measured distortions illustrated good agreement in the fusion zone.

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This research was supported by the National Natural Science Foundation of China (grant number 51865034).

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  1. School of Aeronautical Manufacturing Engineering, Nanchang Hangkong University, Nanchang, 330063, China

    Zheng-tian Wang, Zhen-yu Xiong, Shu-yuan Jiang, Yi-ping Chen, De-an Hu & Dong-hai Cheng

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Wang, Zt., Xiong, Zy., Jiang, Sy. et al. Experimental and numerical investigations of 2A16 aluminium and pure copper magnetically assisted dissimilar laser wire feed welding brazing. Int J Adv Manuf Technol 121, 671–682 (2022). https://doi.org/10.1007/s00170-022-09348-0

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