When the laser light of a handheld welding machine fluctuates, it can be caused by a variety of reasons. The following are possible causes and how to troubleshoot them:
1. **Power Supply Problem**:
– **Cause**: Unstable power supply voltage or poor power supply can cause laser light intensity to fluctuate.
– **Troubleshooting**: Check whether the power supply is stable and measure whether the power supply voltage is within the specified range. If the power supply is found to be unstable, the power module needs to be replaced or repaired.
2. **Cooling System Problem**:
– **Cause**: The efficiency of the cooling system is reduced, which causes the laser to overheat, affecting the stability of the laser output.
– **Troubleshooting**: Check whether the water flow and temperature of the cooling system are normal, clean the blockages in the cooling waterway, and replace or repair the cooling system components.
3. **Fiber Connection Problem**:
– **Cause**: Poor or damaged connection of the fiber connector or the fiber itself can cause the laser light intensity to be unstable.
– Troubleshooting: Check that the fiber optic connector is securely connected and that the fiber is not damaged or excessively bent. If there is a problem, the fiber or connector needs to be replaced.
4. **Lens Contamination or Damage**:
– **Cause**: Protecting dust, oil, or burn points on the lenses, focusing lenses, or mirrors can cause the laser light output to be unstable.
– **Troubleshooting**: Clean the lenses regularly and replace damaged lenses if necessary.
5. **Control System Problem**:
– **Cause**: Failure or improper setting of the control system can cause fluctuations in laser light intensity.
– Troubleshooting: Check that the parameter settings of the control system are correct, confirm that the control board is not faulty or damaged, and recalibrate or replace the control system if necessary.
6. **Laser Problem**:
– **Cause**: The failure or degraded performance of the laser itself can cause the output power to be unstable.
– **Troubleshooting**: Check whether the laser is working and whether the indicator is normal, and confirm that the laser has no abnormal alarms. If necessary, repair or replace the laser.
7. **Air Pressure System Problems**:
– **Cause**: Unstable shielding gas supply or air pressure fluctuations can affect welding stability.
– **Troubleshooting**: Check whether the shielding gas supply and air pressure are stable, confirm that the gas valve is working properly, and adjust or replace the gas supply equipment if necessary.
8. **Environmental Factors**:
– **Cause**: Fluctuations in temperature and humidity in the working environment may also affect the stability of the laser light.
– **Troubleshooting**: Ensure that the temperature and humidity of the working environment are within the specified range of the welding machine, and avoid using the welding machine in an environment that is too high or too low temperature and too high humidity.
Through the above steps, you can quickly diagnose and eliminate the problem of the intensity and weakness of the laser light of the welding machine, and ensure the welding quality and the normal operation of the equipment.
If you need further assistance, please feel free to contact Yousheng Laser Co., Ltd.:
– Telephone: 886-4-24263121
– Email: asia.laser@msa.hinet.net