When you experience a decrease in laser power during the welding process, you can try the following methods to adjust the settings:
1. **Check lens cleaning**: Make sure that the protective lenses, focusing lenses, or mirrors of the welding machine are clean and free of dust or dirt.
2. **Confirm Cooling System**: Check that the cooling system is working properly and maintain the proper operating temperature of the laser.
3. **Check the status of the laser**: Confirm whether the laser is aging and consider replacing it with a new laser if necessary.
4. **Check Fiber Connection**: Make sure that the fiber connector and fiber are not damaged or poorly connected.
5. **Check the stability of the power supply**: Make sure the power supply is stable to avoid the laser power being affected by power supply problems.
6. **Adjust Air Pressure and Shielding Gas**: Check that the shielding gas supply and air pressure are sufficient.
7. **Check the control system**: Confirm that the control system is set correctly and adjust the parameters to ensure the stable output of laser power.
8. **Pay attention to the external environment**: Ensure that the working environment meets the requirements of the welding machine to avoid external factors affecting the efficiency of the laser.
If the above methods do not solve the problem, it is recommended to contact Yousheng Laser Co., Ltd. for professional assistance.