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Magnetic pulse-assisted semi-solid brazing of Cu/Al tube joints and oxide film removal mechanism
RUI Zhenglei, HUANG Shangyu
download PDFAbstract. In this paper, the advantages of magnetic pulse welding, brazing and semi-solid forming are combined to propose magnetic pulse-assisted semi-solid brazing (MPASSB) to join copper and aluminum tubes. Based on 3D electromagnetic-structural-fluid finite element simulations, the high-speed impact of the aluminum tube on the filler metal will drive the high-speed shear rheology of the semi-solid filler metal. Based on 2D FEM-SPH finite element analysis, the aluminum tube will have a strong interaction with the filler metal during the high-speed impact on the filler metal, which is conducive to the removal of the oxide film on the surface of the copper-aluminum tube and the promotion of element diffusion. Microscopic characterization of the joints revealed that the interfacial oxide film had been completely removed, achieving interfacial metallurgical bonding, and no brittle copper-aluminum intermetallic compounds were found at the interface, with a shear strength of 40 MPa.
Keywords
MPASSB, Oxide Film Removal, Shear Rheology, Element Diffusion
Published online 9/15/2024, 8 pages
Copyright © 2024 by the author(s)
Published under license by Materials Research Forum LLC., Millersville PA, USA
Citation: RUI Zhenglei, HUANG Shangyu, Magnetic pulse-assisted semi-solid brazing of Cu/Al tube joints and oxide film removal mechanism, Materials Research Proceedings, Vol. 44, pp 193-200, 2024
DOI: https://doi.org/10.21741/9781644903254-21
The article was published as article 21 of the book Metal Forming 2024
Content from this work may be used under the terms of the Creative Commons Attribution 3.0 license. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.
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