Research Progress on Double Pulse MIG Welding in Aluminum Alloy Welding Technology

DOI

10.2991/978-94-6463-902-5_51How to use a DOI?

Keywords

double-pulse MIG welding; aluminum alloy medium-thickness plate; dissimilar metals

Abstract

Under the dual driving force of national “double carbon” strategy and lightweighting of rail transportation, aluminum alloy welding is facing the urgent demand of “high quality, low consumption and green”. Traditional laser welding is difficult to meet the stringent requirements for weld strength and corrosion resistance of high-speed trains and spacecraft due to low energy utilization and large tendency of porosity and thermal cracking. Double-pulse MIG welding is regarded as a key technology to crack the above bottlenecks by virtue of the advantage of arc-melt pool coupling synergistic regulation, but its process window is narrow, the mechanism is unclear, and the evaluation means is missing, which has become a “neck” problem restricting industrialization. Domestic and foreign research for aluminum alloy sheet is still at the stage of one-way experiments, the lack of 0.15-6.3 mm thickness interval energy - tissue - defect mapping law of the systematic interpretation; medium-thickness plate welding is limited by the deformation and residual stress prediction accuracy is insufficient, difficult to achieve engineering applications. Dissimilar aluminum alloys and aluminum / steel joints due to the interface brittle phase, residual stress concentration and strength plummeted, the existing research has not yet established a “composition - interfacial reaction - joint performance” quantitative model, but also the lack of multi-filament, composite heat source and other auxiliary technologies such as synergistic mechanism and process strategy.

Copyright

© 2025 The Author(s)

Open Access

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TY  - CONF
AU  - Hao Zhang
AU  - Changjun Liu
AU  - Ting Zou
PY  - 2025
DA  - 2025/12/16
TI  - Research Progress on Double Pulse MIG Welding in Aluminum Alloy Welding Technology
BT  - Proceedings of the 2025 7th International Conference on Civil Engineering, Environment Resources and Energy Materials (CCESEM 2025)
PB  - Atlantis Press
SP  - 519
EP  - 527
SN  - 2352-5401
UR  - https://doi.org/10.2991/978-94-6463-902-5_51
DO  - 10.2991/978-94-6463-902-5_51
ID  - Zhang2025
ER  -