Friction stir welding development of aluminium alloys for structural connections


Since its development in ’90, Friction Stir Welding (FSW) had known an important growth, especially for the hard to weld aluminium alloys. For these FSW has been shown to produce welds of high quality with no defects, reduced cost and lower environmental impact when compared to traditional fusion welding. The process parameters influence on the connection formation is related. An experimental program realized by HZG of FSW, applied on two aluminium alloys recommended to be used in the field of civil engineering is presented. Detailed characterisations are presented aiming to emphasize the performance of the process for the analysed alloys.
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