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Microstructural examination and a root bend test were used to examine the results of friction stir welding in dissimilar welds of aluminium alloys A-5083 (Al, 4.5%Mg) and A-6N01 (Al, 0.6%Mg, 0.65%Si) of thickness 4 mm. Optimum welding parameters (tool rotation speed, welding speed), the relative positioning of the two alloys and the types of pores obtained are discussed.

3rd International Symposium, 27-28 Sep 2001, Poster Session, Paper 24