Thermal Modeling of Al-Al and Al-Steel Friction Stir Spot Welding
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Peer-reviewed
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Abstract
This paper presents a finite element thermal model for similar and dissimilar alloy friction stir spot welding (FSSW). The model is calibrated and validated using instrumented lap joints in Al-Al and Al-Fe automotive sheet alloys. The model successfully predicts the thermal histories for a range of process conditions. The resulting temperature histories are used to predict the growth of intermetallic phases at the interface in Al-Fe welds. Temperature predictions were used to study the evolution of hardness of a precipitation-hardened aluminum alloy during post-weld aging after FSSW.
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Journal of Materials Engineering and Performance
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1059-9495
1544-1024
1544-1024
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Springer Nature
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Except where otherwised noted, this item's license is described as Attribution 4.0 International
Sponsorship
Engineering and Physical Sciences Research Council (EP/G022674/1)
The work described herein has been sponsored by the UK Engineering and Physical Sciences Research Council (EPSRC) via the following grants: Friction Joining—Low Energy Manufacturing for Hybrid Structures in Fuel Efficient Transport Applications (EP/G022402/1 and EP/G022674/1), and LATEST 2: Light Alloys Towards Environmentally Sustainable Transport, 2nd Generation Solutions for Advanced Metallic Systems (EP/H020047/1).