... advantages of LBW in comparison to EBW are as follows:- the laser beam can be transmitted through ... GMAW supplies molten metal to fill the joint, and due to the use of a laser, increases the welding ... while the Nd:YAG laser outputs between 0.04–6,000 W. To deliver the laser beam to the weld area, ... types. In the traditional type, the laser output is moved to follow the seam. This is usually achieved ...