Laser welding is laser material processing machine, and often with called laser welding machine, laser welding machine, according to the working way often can be divided into the laser burn welder (manual mould), automatic welding machine, laser welding and laser spot welding, optical fiber transmission laser welding machine, welding is using the high-energy light laser pulse of materials in the tiny region, laser radiation heating local energy through the heat of the internal spread to material, will melt material formed after specific pool in order to achieve the purpose of welding.