Abstract
Welding distortion and residual stresses in Friction Stir Welding (FSW) of thin AA5754-H22 aluminium plates were analysed. An experimental work was conducted concerning the influence of plates’ dimensions, process parameters and welding procedures on friction stir welding induced distortion. Plates’ distortion was evaluated using Digital Image Correlation (DIC). The experimental work was complemented by a fully coupled thermo-mechanical Finite Element Analysis (FEA). The numerical results enabled to correlate the distortion modes observed experimentally with the residual stresses distribution in the welds. It was observed that both the distortion magnitude and mode, as well as the longitudinal residual stresses, are strongly influenced by plates width and thickness. Nor the realising sequence, nor the cooling time after welding, have a strong influence on plates’ distortion and residual stresses. The numerical results also indicate that using ultra high welding speeds enables to suppress distortion in thin plates welding.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
