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Keywords
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Friction stir welding, FSW, thick section, aluminium alloy, tensile testing
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Project Outline
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The primary aim of this research project is to investigate the influence on weld quality using three different friction stir welding (FSW) techniques joining a range of 50mm thickness aluminium alloys. These techniques, namely weld-flip-weld, simultaneous double sided and supported stationary shoulder, each have a different thermo-mechanical weld input and effect on the weld zone which has yet to be extensively investigated and quantified.
This project will present a range of weld quality assessments in AA5083-O, AA6082-T6 and AA7050-T7 including micro-hardness mapping, full section cross tensile testing, electron back scatter diffraction and energy dispersive x-ray spectroscopy. These results will be discussed in relation to the calculated weld energy input.
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