The physio-chemical characteristics of aluminium are cause of considerable difficulties in the welding of this material. Even if the technological level reached with traditional technologies for some types of alloy makes it possible to obtain joints with structures meeting or exceeding required standards, the high amount of heat involved and the high coefficient of expansion of the material are- cause of considerable distortions in the manufacturing process.The greater the concentration of energy (with consequent high work speeds), the greater the geometrical distortion of the workpiece. The high level of specific power and the restricted area involved put laser technology in the position of being one of the most interesting technologies for the welding of aluminium.In the present research, the aim has been to approach the welding of aluminium using laser beam technology, verifying only the feasibility of the joint from metallurgic and mechanical points of view. Subsequently, in relation to the results, this research may be extended to the evaluation of the distortions induced by the process.