The third-generation hand-held laser welding machine uses continuous fiber laser as the heat source for welding. The welding mode can be changed arbitrarily according to different materials and different welding requirements, and the spot width is adjustable, which belongs to the real double pendulum welding. Handheld welding, flexible and convenient, longer welding distance , Unlimited welding methods, single-sided welding and double-sided forming, support fillet welding, vertical welding, splicing welding, stitch welding and other welding methods. Simple operation, zero basic welding, you can learn to operate after a few minutes, the welding seam is beautiful, the welding speed is fast, and the speed is 5 to 10 times that of traditional welding . During welding, the heat-affected area is small, the deformation is small, the welding depth is large, and the welding is firm. It is a new type of welding process product, which solves the traditional Large welding deformation, heavy materials consumables, unsightly welds and difficulty in recruiting.