AbstractIn order to fulfill demands for quality and efficiency in the field of welding engineering, numerous works in research on the optimization of the welding processes are in progress. [1] Aims of this research are increasing the welding speed, stabilizing the welding processes, decreasing the reject rate and reducing the pre and post welding machining. This work relates to the development of a new plasma-laser hybrid welding method in order to increase the productivity of the existing technologies of plasma arc welding and laser beam welding and to compensate their disadvantages, by using common machinery.