When the laser light intensity of a handheld welding machine fluctuates, the cause of the problem can be determined by following the following initial diagnostic steps:
1. **Check the power supply**:
– **Steps**: Use a multimeter to measure the power input voltage of the welding machine and confirm that the voltage is stable within the specified range.
– Method: If the voltage is unstable, the power module may be faulty and the power module needs to be replaced or repaired.
2. **Check the cooling system**:
– **Steps**: Check the cooling water flow and water temperature to ensure that the cooling system is functioning properly.
– **Method**: Confirm that the cooling water pipe is not blocked, the water pump and water cooler are working normally, if there is a problem, you need to clean the blockage or replace the relevant parts.
3. **Check Fiber & Connector**:
– **Step**: Check that the fiber connection is secure and that the fiber is not damaged or excessively bent.
– **Method**: Make sure that the fiber connector is tightly connected, that the fiber is not visibly damaged, and that the fiber or connector needs to be replaced if there is a problem.
4. **Inspect the lenses**:
– **Steps**: Inspect the protective lenses, focusing lenses, and mirrors for dust, oil, or burn spots.
– **Method**: Use special lens paper and anhydrous alcohol to clean the lenses, and replace the lenses if damaged.
5. **Check the laser**:
– **Steps**: Check whether the working status and indicator light of the laser are normal, and confirm that there is no abnormal alarm for the laser.
– **Method**: If the laser has an abnormal prompt or is not working properly, the laser needs to be repaired or replaced.
6. **Check the control system**:
– **Steps**: Check the settings of the control panel and the working status of the control system.
– Method: Make sure all parameters are set correctly, confirm that the control board is not faulty or damaged, and recalibrate or replace the control system if necessary.
7. **Check the shielding gas system**:
– **Steps**: Check that the shielding gas supply is stable and the air pressure is within a reasonable range.
– **Method**: Confirm that the gas valve is working properly and adjust or replace the gas supply equipment if necessary.
8. **Observe environmental factors**:
– **Steps**: Check the temperature and humidity of the working environment to ensure that it is within the specified range.
– **Method**: Avoid using the welding machine in an environment that is too high or too low temperature, too high humidity.
With the above steps, you can quickly determine the cause of the fluctuation of laser light. If the problem persists, it is recommended to contact technical support for a more in-depth inspection and repair.
If you need further assistance, please feel free to contact Yousheng Laser Co., Ltd.:
– Telephone: 886-4-24263121
– Email: asia.laser@msa.hinet.net