The following is a summary of solutions to common problems of laser cutting machines, combined with a number of technical documents and industry practice experience, covering mechanical, optical, electrical and operation and maintenance and other aspects:

 1. Cutting quality problems

1. Continuous cutting or rough incision

 Check if the laser power setting is too low and adjust the potentiometer or software power parameters.  

Clean or replace contaminated/worn focusing lenses and reflective lenses to ensure that the light path is free of deviation.  

Adjust the focal length to the optimum position and use the focus position test tool to calibrate.  

Check the purity of the auxiliary gas (e.g. nitrogen or oxygen), and adjust the pressure to the recommended value.  

2. Cutting size deviation or pattern deformation

Calibrate the pulse equivalent of the numerical control system and adjust the step parameters in the software.  

Check whether the synchronization wheel screw is loose, whether the belt tension is appropriate, and tighten the mechanical parts.  

If step loss occurs during dynamic cutting, it is necessary to reduce the processing speed or check the stability of the motor driver.  

3. Burrs or abnormal sparks

Replace worn nozzles and optimize gas pressure (e.g., switch to nitrogen for stainless steel cutting).  

Check the laser focus position offset and recalibrate the optical path.  

For highly reflective materials (e.g. aluminum, copper), use pulse perforation technology or add anti-reflection coatings.  

 Mechanical and electrical faults

1. Abnormal machine movement (random walking, stuck)

Check the ground connection to eliminate static interference.  

Test whether the motor shaft is broken, whether the synchronous wheel bearing is damaged, and replace the damaged parts in time.  

Check the driver power supply voltage (usually 24-60V DC), and use a multimeter to check the stability of the switching power supply.  

2. Laser failure or power attenuation

Check whether the water circulation system is normal, and replace the cooling water if the water temperature exceeds 40 ° C.  

Short-circuit the AIN and + 5V signal test of the laser power supply, if the light comes out, it is a potentiometer failure.  

Replace the aging laser tube (if the light attenuation exceeds 20%) or the ignition part of the high-voltage line. Most faults can be solved by basic troubleshooting (such as cleaning the lens, checking the power supply). Complex problems need to be combined with equipment manuals and professional support. Regular maintenance can reduce sudden failures by 80%. For enterprise-level users, it is recommended to pay attention to the trend of intelligent equipment upgrades to enhance long-term competitiveness. For more detailed cases, please refer to the fault library of International Metal Processing Network.