Laser welding is a key application of laser processing technology. It utilizes the radiation energy of lasers to achieve effective welding. Its operating principle is to excite a laser-active medium (such as a mixture of CO2 and other gases, or YAG yttrium aluminum garnet crystals) in a specific manner, causing it to oscillate back and forth within a resonant cavity. This stimulates the formation of a stimulated radiation beam, which, when it contacts the workpiece, absorbs its energy. When the temperature reaches the material's melting point, welding can occur.

What is laser welding? What is the current development of laser welding technology? In what fields can laser welding technology be applied?

Why use a flat-top laser beam?

As long as the gas type, gas flow rate, and injection method are selected correctly, the ideal effect can be achieved. However, incorrect use of shielding gas can also have adverse effects on welding.