Laser welding is an efficient and precise welding method that uses a high-energy-density laser beam as a heat source. Laser welding is one of the important aspects of the application of laser material processing technology. In the 1970s, it was mainly used for welding thin-walled materials and low-speed welding. The welding process is heat conduction, that is, laser radiation heats the surface of the workpiece, and the surface heat diffuses to the inside through heat conduction. By controlling the laser pulse width, energy, peak power and repetition frequency and other parameters, the workpiece is melted to form a specific molten pool. Due to its unique advantages, it has been successfully applied in the precision welding of micro and small parts.


With the development of science and technology, laser welding technology has been continuously improved, and it has also led the global industry into a new era of intelligent production. As a high-quality, high-precision, low-distortion, high-efficiency and high-speed application technology, laser welding is becoming an important tool for metal material processing and manufacturing, and is considered to be one of the welding methods with development potential in the 21st century.

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