INFLUENCE OF FRICTION STIR WELDING PARAMETERS ON PROPERTIES OF 2024 T3 ALUMINIUM ALLOY JOINTS
2014
The aim of this work is to analyse the process of friction stir welding (FSW)
of 3mm thick aluminium plates made of high strength aluminium alloy - 2024
T3, as well as to assess the mechanical properties of the produced joints.
FSW is a modern procedure which enables joining of similar and dissimilar
materials in the solid state, by the combined action of heat and mechanical
work. This paper presents an analysis of the experimental results obtained by
testing the butt welded joints. Tensile strength of the produced joints is
assessed, as well as the distribution of hardness, micro-and macrostructure
through the joints (in the base material, nugget, heat affected zone and
thermo-mechanically affected zone). Different combinations of the tool
rotation speed and the welding speed are used, and the dependence of the
properties of the joints on these parameters of welding technology is
determined. [Projekat Ministarstva nauke Republike Srbije, br. TR 34018 i br. TR 35006]
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