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Location：Fiber laser cutting machine: analysis of the causes and solutions for the
Click： Time：2025/11/11 21:23:14
Fiber laser cutting machines are widely used in fields such as metal processing due to their advantages of high precision and efficiency. 'No light output' is a common type of malfunction during its operation, which directly affects production progress. This article starts from the core components of the equipment, rationally analyzes the causes of the malfunction, and provides targeted solutions, providing reference for on-site operation and maintenance.
Abnormal laser generator is the primary cause of 'no light emission'. As the source of energy output, if the generator has poor power supply contact, it will cause unstable power supply and fail to start; Internal resonant cavity misalignment or gain medium aging can also prevent laser generation. At this point, it is necessary to first check the power interface of the generator to ensure that the plug is securely fastened and the circuit is not damaged; If the power supply is normal, it is necessary to contact professionals to test the resonant cavity parameters and replace the gain medium if necessary. Please note that the laser generator is a precision component and non professional operation can easily cause secondary damage.
The failure of the optical transmission system is another key factor. Fiber optics, as a carrier for laser transmission, can block laser transmission if there is excessive bending, breakage, or interface contamination. During operation and maintenance, the direction of the optical fiber should be checked first to avoid a too small bending radius; Recheck the fiber optic interface and use a specialized cleaning agent to wipe away dust and oil stains; If the fiber optic cable breaks, it is necessary to replace it with the same model of fiber optic cable and recalibrate the optical path. In addition, contamination or damage to optical components such as mirrors and focusing lenses can also cause laser attenuation or even failure to emit light. Regular cleaning and inspection of component integrity are necessary.
Control system and auxiliary component failures cannot be ignored. Abnormal commands issued by the control system, such as interrupted laser control signals, can cause the generator to malfunction; The cooling system malfunction causes high temperature, and the generator will activate the protection mechanism to stop emitting light; Insufficient gas path pressure or excessive impurities may also affect laser output. When solving the problem, it is necessary to first restart the control system to troubleshoot the signal issue, and then check the water temperature and level of the cooling system and the operation status of the water pump to ensure that the temperature meets the standard; At the same time, check the pressure of the gas path, clean the impurities in the filter, and ensure the smoothness of the gas path.
In summary, the "no light" fault of the fiber laser cutting machine needs to be checked in the order of "generator, optical path, and control system", following the principle of "checking external connections first, then checking internal components". In daily operation and maintenance, regularly cleaning optical components, checking fiber status, and maintaining cooling and gas path systems can significantly reduce the occurrence rate of faults and ensure stable equipment operation.
Abnormal laser generator is the primary cause of 'no light emission'. As the source of energy output, if the generator has poor power supply contact, it will cause unstable power supply and fail to start; Internal resonant cavity misalignment or gain medium aging can also prevent laser generation. At this point, it is necessary to first check the power interface of the generator to ensure that the plug is securely fastened and the circuit is not damaged; If the power supply is normal, it is necessary to contact professionals to test the resonant cavity parameters and replace the gain medium if necessary. Please note that the laser generator is a precision component and non professional operation can easily cause secondary damage.
The failure of the optical transmission system is another key factor. Fiber optics, as a carrier for laser transmission, can block laser transmission if there is excessive bending, breakage, or interface contamination. During operation and maintenance, the direction of the optical fiber should be checked first to avoid a too small bending radius; Recheck the fiber optic interface and use a specialized cleaning agent to wipe away dust and oil stains; If the fiber optic cable breaks, it is necessary to replace it with the same model of fiber optic cable and recalibrate the optical path. In addition, contamination or damage to optical components such as mirrors and focusing lenses can also cause laser attenuation or even failure to emit light. Regular cleaning and inspection of component integrity are necessary.
Control system and auxiliary component failures cannot be ignored. Abnormal commands issued by the control system, such as interrupted laser control signals, can cause the generator to malfunction; The cooling system malfunction causes high temperature, and the generator will activate the protection mechanism to stop emitting light; Insufficient gas path pressure or excessive impurities may also affect laser output. When solving the problem, it is necessary to first restart the control system to troubleshoot the signal issue, and then check the water temperature and level of the cooling system and the operation status of the water pump to ensure that the temperature meets the standard; At the same time, check the pressure of the gas path, clean the impurities in the filter, and ensure the smoothness of the gas path.
In summary, the "no light" fault of the fiber laser cutting machine needs to be checked in the order of "generator, optical path, and control system", following the principle of "checking external connections first, then checking internal components". In daily operation and maintenance, regularly cleaning optical components, checking fiber status, and maintaining cooling and gas path systems can significantly reduce the occurrence rate of faults and ensure stable equipment operation.