With the high-precision development of industrial machinery, product refinement, labor cost savings, and the advancement of product intelligence and humanization, laser welding machines were born and quickly developed into mass production. The advantage of laser welding machines is their precision, as they can焊接 thin plates below 3mm without polishing, and the intelligent welding process does not require highly skilled welders. Laser welding machines are categorized into handheld laser welders, automatic laser welders, sign-making laser welders, and mold laser welders.