Market needs for higher geometric flexibility in combination with shorter production cycles in laser welding represent a challenge for new approaches in working lightweight space structures. Among the considered processes for joining of such space structures, the Bifocal Hybrid Laser Welding of aluminium was investigated at the Institute for Machine Tools and Industrial Management (iwb) in the course of the Transregional Collaborative Research Center (TR 10) Integration of forming, cutting and joining for the flexible production of lightweight space structures. The main goals were to establish this new technique and to analyse characteristic synergies between the superposed laser beams and the examined aluminium alloy EN-AW 6060. Considering the composition of the used alloy EN-AW 6060 the laser welding technique presented in this paper was mainly designed for laser welding of aluminium alloys tending to have hot cracks after fusion welding. Especially this certain aluminium alloy is deemed to be hardly weldable. As a critical feature, the experimental setup includes an Nd:YAG laser and a high power diode laser, both of which provide a 3 kW maximum output, acting together within the same process zone. As results, an increase in the welding speed, a reduction of the roughness of the weld surface and an improvement in energy transfer efficiency could be observed. In this paper, the future investigations to be carried out using a 6 kW high power diode laser in combination with the original Nd:YAG laser will be lined out. This setup will allow for further explanations regarding the interaction effects during the welding process. On the basis of the already existing results it can be assumed that the higher powered laser will add up to high quality welding seams. As an aim for a better process understanding and process control, the new experimental setup will include an online process inspection system. The paper will give insight into the findings of the achieved results so far and line out the further proceedings in regard to critical parameters and their effect on the overall laser welding process.