Laser Welding Machine Principle

Laser Welding Machine Principle

Laser welding uses high-energy density laser as the heat source to irradiate the material connection, causing the separated material to absorb laser energy and quickly melt and even vaporize, forming a molten pool together. In the subsequent cooling process, it solidifies together to connect together, which is a physical connection method.

 

The main characteristics of laser welding machine

① Fast speed, large depth, and small deformation.

② Welding can be carried out at room temperature or under special conditions, and the welding equipment is simple. For example, when a laser passes through an electromagnetic field, the beam will not shift; Laser can be used for welding in vacuum, air, and certain gas environments, and can be welded through glass or materials that are transparent to the beam of light.

③Can weld refractory materials such as titanium, quartz, etc., and can weld heterogeneous materials with good results.

④ After laser focusing, the power density is high. When welding high-power devices, the aspect ratio can reach 5:1, with a maximum of 10:1.

⑤ Can perform micro welding. After focusing, the laser beam can obtain a very small spot and be accurately positioned, which can be applied to the assembly welding of micro and small work pieces in large-scale automated production.

⑥ Weldable and difficult to access parts, implementing non-contact long-distance welding with great flexibility

⑦ Laser beams are easy to achieve beam splitting in time and space, allowing for simultaneous processing of multiple beams and multiple workstations, providing conditions for more precise welding.