A Practical Guide To Reducing The Ageing Rate Of Fibre Laser Cutting Machines
As high-precision processing equipment, the ageing rate of fibre laser cutting machines directly impacts production efficiency and costs. Through scientific maintenance and standardised operation, the equipment's lifespan can be effectively extended. Below are practical recommendations based on industry experience:
I. Daily Cleaning: Details Determine Equipment Lifespan
1. Optical Component Cleaning
Before daily startup, clean optical components such as mirrors and focusing lenses with anhydrous industrial alcohol or acetone. Use lens paper for flat surfaces and cotton buds for curved mirrors to prevent scratches. Dust on lenses reduces light transmission, compromises cutting accuracy, and accelerates lens degradation if left uncleaned.
2. Machine Body Dust Removal
Clear dust from the operating platform, electrical cabinets, and equipment surfaces using compressed air and a vacuum cleaner. Ensure all electrical cabinet doors are closed to prevent dust ingress. Dust accumulation accelerates component wear and may cause electrical short circuits.
3. Cutting Head Calibration
Prior to each cutting operation, verify that the laser beam emerges centrally from the nozzle. Adjust the alignment if deviation occurs. Set the cutting head height to 3-5mm according to sheet thickness to prevent collision damage.
II. Routine Maintenance: Key to Preventing Faults
1. Cooling System Maintenance
Monthly cleaning of the chiller unit. Replace with distilled or purified water (avoid tap water), maintaining water temperature below 35°C.
Add antifreeze during winter to prevent laser tube freezing and cracking.
Quarterly inspection of cooling water conductivity, ensuring it remains between 30-50μS/cm. Replace promptly if outside this range.
2. Mechanical Component Lubrication
Weekly clean X/Y-axis screws and apply lubricating oil. Quarterly inspect gear rack and guide rail wear, promptly remove foreign objects and re-lubricate.
Regularly check for damage or blockages in ball screw nut fixing screws, water pipe connections, and air duct joints.
3. Electrical System Inspection
Periodically tighten terminal connections to prevent short circuits caused by loosening.
Verify power supply voltage stability to prevent equipment damage from voltage fluctuations.
III. Environmental Control: Creating an Optimal Operating Environment
1. Temperature and Humidity Management
Maintain ambient temperatures between 18-30°C with humidity below 60%.
During summer, equip lasers with cabinet air conditioning or dehumidifiers to prevent condensation or power degradation caused by high temperatures and humidity.
In winter, prevent air ducts from freezing to ensure uninterrupted operation.
2. Dust and Contamination Prevention
Position equipment away from pollution sources such as spray painting or welding to prevent dust corrosion of electrical components.
Regularly clean intake air filters to prevent blockages that impair cooling efficiency.
3. Vibration and Interference Prevention
Install vibration-damping pads under equipment foundations and locate away from vibration sources like press brakes to prevent mechanical stress damage.
Ensure stable power supply quality to avoid control system failures caused by electromagnetic interference.
IV. Standardised Operation: The Core of Extended Lifespan
1. Parameter Matching
Strictly configure cutting parameters according to manufacturer standards to prevent overpowering or overspeed operation.
Dynamically adjust power, speed, and focal position when cutting different materials to ensure optimal cutting results.
2. Safety Protection
Operators must wear protective eyewear; direct observation of the laser beam is strictly prohibited.
Equip the machine area with fire extinguishers and regularly inspect dust extraction systems to prevent dust explosions.
3. Record Keeping and Feedback
Establish equipment maintenance records documenting servicing intervals, replaced components, and anomalies.
Analyse data to identify potential issues proactively, preventing minor faults from escalating into major damage.
While ageing in fibre laser cutting machines is irreversible, the combined strategy of 'daily cleaning + regular maintenance + environmental control + standardised operation' significantly mitigates degradation rates. Enterprises are advised to implement standardised maintenance procedures and train operators in fundamental upkeep techniques to ensure equipment consistently operates at peak performance.