Journal
JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
Volume 25, Issue 9, Pages 4089-4098Publisher
SPRINGER
DOI: 10.1007/s11665-016-2225-y
Keywords
aluminum; automotive and transportation; joining; modeling and simulation; steel; welding
Categories
Funding
- UK Engineering and Physical Sciences Research Council (EPSRC) [EP/G022402/1, EP/G022674/1, EP/H020047/1]
- Engineering and Physical Sciences Research Council [EP/G022402/1, 1260766, EP/G022674/1, EP/H020047/1] Funding Source: researchfish
- EPSRC [EP/H020047/1, EP/G022674/1, EP/G022402/1] Funding Source: UKRI
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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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