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Solutions to Common Faults of Laser Welding Machines
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Solutions to Common Faults of Laser Welding Machines

Views: 0     Author: HanTenCNC     Publish Time: 2022-01-13      Origin: Site

welderAs an advanced welding method, laser welding machines are used in all walks of life. In the process of using the laser welding machine, there will always be some large and small faults. The following summarizes the common faults and solutions of laser welding machines.


1. The screen of the laser welding machine is in a black screen state

If there is a problem with the screen of the laser welding machine, find the cause in time and repair or replace the screen.


2. The penetration depth of the laser welding machine is not enough

1) If the laser energy is not enough, it can be solved by increasing the pulse width and increasing the current.

2) The defocus amount of the focusing mirror is wrong, and the defocus amount should be adjusted to be close to the focal position (but no splashes are allowed).


3. The host of the laser welding machine is shaking during use

The foot base under the laser welding machine is not fixed, or only a part is fixed, just fix the base of the laser welding machine


4. Cracks appear when the workpiece is welded by the laser welding machine

1) The flow rate of the shielding gas is too large, which can be solved by reducing the flow rate of the shielding gas.

2) If the cooling speed of the workpiece is too fast, the temperature of the cooling water on the fixture should be adjusted to increase the water temperature.

3) The workpiece is not cleaned. In this case, the workpiece needs to be cleaned again.

4) If the matching clearance between the workpieces is too large or there are burrs, the machining accuracy of the workpieces should be improved.


5. The flame is weakened when the laser welding machine is welding

1) Laser shift of the main optical path, the solution: adjust the total reflection and semi-reflection film of the main optical path, use the image paper to check and adjust the light spot.

2) If the cooling water is polluted or the cooling water has not been replaced for a long time, the solution: replace the cooling water and clean the UV filter glass tube and xenon lamp.

3) If the focusing lens or the resonant cavity diaphragm of the laser is damaged or polluted, the solution: replace or clean the focusing lens and the resonant cavity reflective diaphragm.

4) The laser is not output from the center of the copper gas nozzle under the focusing head. Solution: Adjust the 45-degree reflective diaphragm to make the laser output from the center of the gas nozzle.

5) The shutter is not fully


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