Laser welding is a process that uses a lens to concentrate light with high directivity and convergence, resulting in a high energy density beam used as the heat source.
Adjusting the laser beam output makes it possible to perform penetration welding with a narrow width relative to the depth. Brazing and soldering is also possible by melting and joining an alloy with a lower melting point than the base material.
Laser welding is an essential technology for the future of manufacturing due to remarkable improvements in laser output efficiency. This section introduces the typical technologies used in laser welding.
- Principles of laser welding
- Types of lasers for laser welding
- Laser beam quality
- Difference between gas lasers, solid-state lasers, and semiconductor lasers
- Solid-state laser excitation methods
- CO2 laser welding (carbon dioxide laser welding)
- YAG laser welding
- YVO4 laser welding
- Fiber (Yb fiber) laser welding
- Semiconductor (LD) laser welding
- Hybrid welding
- Laser welding techniques