Laser welding is a laser processing technique in which a high-energy-density laser beam is directed to the joint area of two materials, causing the edges of both materials to locally melt and then fuse together upon cooling and solidification. This method enables high-quality, high-precision, low-deformation, high-efficiency, and high-speed welding, making it an important technique for metal material processing. Unlike traditional welding, laser welding has a small heat-affected zone, fast and concentrated heating, and low thermal influence. It is widely applied in metal products, precision instruments, batteries, 3C electronics, and more. Thanks to its superior characteristics, laser welding is highly competitive in many precision processing industries.
Laser welding equipment is highly suitable for automated industries and large-scale production lines. When paired with robotic arms or four-axis linkage platforms, it can easily perform welding on straight lines, arcs, curved surfaces, tubes, and complex shapes. For this reason, laser welding differs from laser cutting or marking in that customization accounts for the majority of applications. Over the next decade, the laser welding market is expected to grow rapidly, becoming the rising star in the field of laser processing.
Currently, for industrial applications involving metal materials, laser welding commonly uses fiber lasers and YAG lasers with wavelengths around 1064nm. This is because metals absorb this wavelength exceptionally well, making processing highly effective. For a detailed comparison between fiber lasers and YAG lasers, please refer to other technical articles on this site.
