During daily operation of a fiber laser welding machine, if the laser fails to emit light, the issue can usually be diagnosed and resolved by checking the following aspects:
1. Laser Source Alarm
Indicator light alarm on the laser source
Alarm displayed on the system interface
Connect to the upper computer software to view detailed alarm information and identify the cause before taking corrective action.
2. Chiller Alarm
High temperature alarm: Usually caused by the compressor not functioning properly.
Flow alarm: Typically results from blockage or abnormal circulation in the water-cooling system.
3. Laser Head Temperature Alarm
If the protective lens temperature is too high, it may be due to contamination or damage that went unnoticed, leading to overheating during prolonged operation.
Recommendation: Regularly clean, inspect, and replace the protective lens as needed.
4. Equipment Contact Issues
The laser head is not in contact with the workpiece.
The safety clamp is not engaged, or the clamp wiring is loose or poorly connected.
5. System Setting Errors
The laser button on the system interface is not activated.
The signal level is set incorrectly, preventing the laser source from being properly triggered.
Maintenance Tip
Regular maintenance, including cleaning the water-cooling system and optical components, is essential to ensure stable laser output and extend the service life of your laser welding machine.
Post time: Oct-17-2025
