Mold laser welding machine mainly used in large-scale moulds’ repairing. the machine is controlled by Industrial micro-Computer.YAG Laser mould welding machine is use the high energy of heat that instantaneously produced by laser to melt the special-purpose welding wire and connect it with the damaged parts of the mould so it can connect with the original material firmly, after that it shows a reface by electric spark and grind & cutting and some other processing and so the mould is repaired.