Frequently Asked Questions

52 expert answers about laser cutting, tube cutting, welding, and metal products from FANY LASER

Fiber Laser Cutting Machine

Q: What materials can a fiber laser cutting machine cut?

A: Fiber laser cutters mainly process metal materials including stainless steel, carbon steel, alloy steel, aluminum alloy, brass, and copper sheets. They are suitable for most industrial metal sheets but NOT for wood, plastic, glass, or other non-metal materials.

Q: What is the maximum cutting thickness?

A: Thickness depends on laser power. A 1500W machine cuts carbon steel up to 8mm and stainless steel up to 4mm. 3000W: 16mm carbon steel, 8mm stainless. 6000W: 25mm carbon steel, 12mm stainless. 12000W: 40mm carbon steel, 20mm stainless. Higher power models can be customized.

Q: Does laser cutting produce burrs?

A: With properly adjusted parameters, thin sheets produce virtually no burrs with smooth edges. Thick plates may have slight dross, which is normal and easily removed by light grinding without affecting workpiece precision.

Q: What causes dimensional deviation?

A: Deviations within 0.5mm for thin sheets and 1mm for thick plates are normal kerf loss. Larger deviations are usually caused by incorrect parameters, dirty lenses, rail misalignment, servo parameter errors, or uneven workpiece placement. These can be resolved by calibrating parameters, cleaning optics, and realigning the machine.

Q: What if the cutter won't cut through or cuts intermittently?

A: Common causes include insufficient laser power, excessive cutting speed, incorrect focal position, low assist gas pressure, or dirty lenses. Start by cleaning the protective lens and focusing lens, recalibrating focal length, then matching power and speed to material thickness, and checking gas pressure.

Q: Will cutting reflective metals damage the laser?

A: Our machines are equipped with built-in back-reflection isolators that effectively prevent return-light damage. When cutting reflective metals, reduce starting power, keep lenses clean, and maintain precise focus. This ensures stable cutting without equipment damage.

Q: What cutting accuracy can be achieved?

A: Positioning accuracy is ±0.03mm, repeat positioning accuracy is ±0.02mm, and small-hole and precision part cutting accuracy reaches 0.05mm. This fully meets the requirements of hardware, sheet metal, and precision machining industries.

Q: Can the machine work 24/7?

A: Yes. The machines are designed for industrial-grade continuous operation. With regular maintenance, proper water cooling, and routine cleaning of components, they can run 24/7 without interruption, ideal for high-volume production.

Q: What assist gas and pressure are needed?

A: Carbon steel cutting uses oxygen at 0.3-0.8 MPa. Stainless steel and aluminum cutting uses nitrogen at 1.0-2.0 MPa. High-purity gas improves cut surface smoothness and reduces dross formation.

Q: Why is the cut surface rough?

A: Rough cut surfaces are usually caused by insufficient gas purity, focal position deviation, mismatched cutting speed, blocked nozzle, or worn lenses. Solutions include switching to high-purity gas, recalibrating focus, adjusting cutting parameters, and cleaning or replacing the nozzle and lenses.

Q: Is the laser cutter energy-efficient?

A: Fiber lasers are more energy-efficient than traditional machines. A 1500W model consumes 3-5 kWh, and a 6000W model consumes 10-15 kWh per hour. Standby power consumption is very low, offering significant energy cost savings over long-term use.

Q: What if the machine shows an error or won't start?

A: First check the main power supply, water cooling system, and emergency stop button. Verify assist gas pressure is adequate. If the error is system-parameter related, restart the machine. For complex errors, contact our after-sales support for remote diagnosis.

Q: How often should lenses be replaced?

A: Under normal conditions with regular cleaning, focusing and protective lenses last 6-12 months. In heavy smoke environments or when frequently cutting reflective materials, inspect every 3-6 months. Replace immediately if burn marks appear or light transmittance decreases.

Q: How often should the nozzle be cleaned or replaced?

A: Inspect daily. Clean every 50 operating hours using compressed air. Never use hard tools to scrape the nozzle. Replace immediately if the nozzle is deformed or the bore diameter is worn.

Q: How long to learn laser cutter operation?

A: Our machines feature an intelligent CNC system with simple operation. We provide free one-on-one training. A complete beginner can master basic cutting, programming, and parameter adjustment within 1-2 days.

Laser Tube Cutting Machine

Q: What types of tubes can a laser tube cutter process?

A: Laser tube cutters handle stainless steel, carbon steel, aluminum alloy, copper, and other metal tubes. They support round, square, rectangular, oval, and special-shaped tubes, covering standard industrial tube specifications.

Q: What diameter and wall thickness range?

A: Standard models support tube diameters from 10-600mm and wall thicknesses from 0.5-20mm. Custom machines can be built for larger diameters and thicker walls.

Q: Can it drill, bevel, and slot in one setup?

A: Yes. Laser tube cutters integrate multiple processes in one machine: cutting off, precision drilling, 45-degree bevel cutting, special-shaped slotting, engraving, and hollowing out — all in a single pass.

Q: Why is the tube end deformed or has burrs?

A: Usually caused by unstable clamping, uneven rotation speed, mismatched power/speed, or very thin walls. Adjust clamping force, optimize cutting parameters, and reduce cutting speed to prevent deformation and minimize burrs.

Q: Will long tubes vibrate or lose precision?

A: Our tube cutters have automatic material support and anti-vibration clamping. Long tubes remain stable with no swaying. Length cutting accuracy is within ±0.05mm.

Q: Can it process special-shaped tubes?

A: Yes. Custom clamps can be made for oval, D-shaped, grooved, and other special-shaped metal tubes for precision cutting, drilling, and chamfering.

Q: Does laser-cut tubing need secondary grinding?

A: With precise parameter adjustment, the cut end is smooth with minimal burrs. Most parts can be used directly. High-end workpieces may need only light grinding.

Q: Can multiple tubes be cut at once?

A: Custom multi-station models support simultaneous cutting of multiple tubes, significantly improving production efficiency for high-volume standardized processing.

Q: Advantages over traditional sawing?

A: No blade wear, no dust pollution, no deformation, higher precision, ability to create complex shapes, faster processing, and significant savings on labor and consumable costs.

Q: How to prevent thin-wall aluminum tubes from burning through?

A: Reduce laser power, increase cutting speed, and raise assist gas pressure. Use a dedicated thin-wall tube cutting program to prevent burn-through and deformation.

Laser Welding Machine

Q: What materials can a laser welder weld?

A: Laser welders handle stainless steel, carbon steel, aluminum alloy, galvanized sheet, copper, and other metals. They support butt welding, tube joining, edge welding, lap welding, and spot welding.

Q: What are the advantages of laser welding?

A: Minimal heat distortion, smooth and fine weld seams with no porosity, high joint strength, little to no grinding needed. Fast and precise — ideal for precision hardware, tubing, and sheet metal components.

Q: Why does aluminum weld crack or turn black?

A: Aluminum has high thermal conductivity and oxidizes easily. Use dedicated aluminum welding parameters, clean the oxide layer beforehand, and use high-purity argon shielding gas. This prevents blackening, cracking, and insufficient fusion.

Q: Handheld vs. stationary — which to choose?

A: Handheld welders are best for large, irregular, or mobile welding tasks. Stationary automatic welders are ideal for small precision parts and high-volume standardized production. Choose based on your workpiece and production volume.

Q: Does laser welding need post-weld polishing?

A: The weld seam is smooth and bright. For most applications, no polishing is needed. For appearance-critical work, light polishing achieves a mirror finish.

Q: Will thin sheets deform or burn through?

A: Laser welding has an extremely small heat-affected zone. With dedicated parameters, sheets as thin as 0.5mm can be welded steadily with no deformation, burn-through, or collapse.

Q: Can tube joining be seamless?

A: Yes. With precise alignment and uniform beam distribution, tube butt welds are dense, smooth, and aesthetically formed. Sealing strength and joint integrity meet industry standards.

Q: Is laser welding difficult to learn?

A: No. Laser welders feature intelligent one-button parameter adjustment. Beginners can operate after a short training session — no professional welding qualification needed.

Q: What causes insufficient fusion or missed spots?

A: Common causes include poor workpiece fit-up, beam spot deviation, insufficient power, excessive scanning speed, or inadequate shielding gas. Realign the workpiece, adjust parameters, and clean the surface.

Q: Are laser welder operating costs high?

A: No. Low energy consumption and no consumable costs (no welding rods or wire). Only a small amount of shielding gas is needed. Long-term costs are significantly lower than traditional TIG or arc welding.

Stainless Steel & Aluminum Products

Q: What stainless steel grades do you offer?

A: We supply 201, 304, 316L, 430, and other mainstream grades. Sheet thickness: 0.3-50mm. Tubes: round, square, and rectangular profiles. Custom sizes available.

Q: What aluminum alloy grades do you supply?

A: We stock 6061, 6063, 5052, 7075, and other industrial-grade aluminum alloys. Sheets are lightweight with high strength. Tubes offer excellent corrosion resistance and machinability.

Q: Do you offer custom cutting and processing?

A: Yes. One-stop custom services including laser cutting, drilling, bending, welding, polishing, and brushing per your drawings. Custom sizes and shapes available.

Q: What is the difference between 304 and 316L stainless steel?

A: 304 offers good versatility and cost-effectiveness for indoor/dry environments. 316L has superior acid, alkali, and corrosion resistance, ideal for outdoor, chemical, and coastal applications.

Q: What is the difference between 6061 and 6063 aluminum?

A: 6063 has good plasticity and high surface finish for decorative trim, tubes, and profiles. 6061 offers higher hardness and strength for mechanical sheets, structural components, and precision parts.

Q: Are stainless steel sheets rust-proof?

A: 304 and 316L offer excellent rust and corrosion resistance. 201 is suitable for dry indoor use but may oxidize in humid or acidic environments.

Q: Do aluminum products oxidize or discolor?

A: High-quality aluminum has a natural oxide protective layer. Anodizing or coating can be applied for enhanced wear resistance and aesthetics.

Q: Can you supply non-standard sizes?

A: Yes. Thickness, length, width, diameter, and wall thickness can all be custom ordered. Small-batch samples and large-volume supply available.

Q: Do you offer toll processing?

A: Yes. We accept customer-supplied materials for laser cutting, tube cutting, welding, and precision finishing.

Q: What is the lead time?

A: Standard stock sizes ship same or next day. Custom sizes deliver within 3-7 working days. Large orders can be expedited.

Q: Do you inspect products before shipment?

A: All products undergo material testing, dimensional calibration, and visual inspection. Material test certificates are provided.

Q: Can you guarantee flatness after processing?

A: Yes. Raw materials meet flatness standards. Our high-precision laser equipment ensures no deformation or edge warping.

Maintenance & After-Sales

Q: What daily maintenance does a laser machine need?

A: Daily: clean lenses, nozzle, and worktable. Weekly: clean chiller filter, check water/gas lines. Monthly: calibrate rails, lubricate transmission. Regular updates extend machine lifespan significantly.

Q: What chiller temperature is correct? What if it overheats?

A: Standard temperature is 20-25°C. Overheating causes power drop. Clean the chiller filter regularly, ensure ventilation, and let the system cool during extended operation.

Q: What is your warranty and after-sales support?

A: 1-3 year warranty depending on model, extended warranty on laser source. 24/7 remote support, on-site repair, lifetime maintenance, and free technical upgrades.

Q: Do you provide on-site installation and training?

A: Yes. All machines include free on-site installation, commissioning, operation training, and parameter setup. Your team can start production immediately.

Q: How quickly do you respond to malfunctions?

A: Customer service responds within 24 hours. Simple issues resolved remotely in 10-30 minutes. Hardware failures: engineer dispatched to your location to minimize downtime.

Still Have Questions?

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