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What is a YAG laser welding machine

What is a YAG laser welding machine

2019-09-12

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YAG laser welding machine is a kind of laser welding machine which is more common in the market. Its working principle is to use high-energy pulsed laser to weld the object, and discharge the pulse of the xenon lamp through the laser power source to form a certain frequency and pulse width of the light wave radiated through the concentrating cavity. In the Nd3+:YAG crystal, the crystal light emits a pulsed laser of 1064 nm after resonance, and then is expanded, reflected, and focused for welding. The pulse laser frequency, pulse width, table moving speed, and moving direction required for welding are all It can be controlled by PLC or industrial PC. It is widely used in advertising signs, medical certificates, jewelry welding and other industries.

 

The advantages of the YAG laser welding machine are as follows:

 

1: high aspect ratio. The weld is deep and narrow, and the weld is bright and beautiful.

 

2: Due to the high power density, the melting process is extremely fast, the input workpiece heat is very low, the welding speed is fast, the thermal deformation is small, and the heat affected zone is small.

 

3: High density. During the weld formation process, the molten pool is continuously stirred and the gas escapes, creating a non-porous penetration weld. The high cooling rate after welding tends to make the weld microstructure fine, and the weld strength, toughness and overall performance are high.

 

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