Owing to the greater precision of energy density control, the highest possible metallurgical purity of the process and the lack of sensitivity to reflectivity and surface roughness, electron beam welding is a suitable method for joining aluminium alloys. The paper presents results concerning the welding of aluminium alloy grades 6060 and 6061 as well as experimental alloys having higher copper contents. The tests discussed in the paper led to the obtainment of joints characterised by a high strength of up to 289.7 MPa and the lack of unacceptable imperfections.