Fiber laser welding works by focusing a high-power laser beam through a fiber optic cable onto the workpiece, melting and fusing materials. Raymax's systems use single-mode or multi-mode fiber lasers, with power up to 4kW, enabling deep penetration and narrow weld seams. The process is non-contact, reducing distortion and improving precision. Integrated cooling systems and motion control ensure stable performance, while optional robotic arms enable 3D welding for complex structures.