1.Comparison of Common Cutting Methods
| Method | Applicable Scenarios | Precision / Quality | Key Parameters |
|---|---|---|---|
| High-pressure water jet | Complex shapes, high precision (e.g., architectural decor) | ±0.1 mm, no thermal deformation | Water pressure ≥380 MPa, abrasive flow 500 g/min |
| Laser cutting | Precision cutting of thin plates (≤8 mm) | Surface roughness Ra≤12.5 μm, verticality ≥95% | Power 1.5–3 kW, nitrogen-assisted to prevent oxidation |
| Circular saw cutting | Straight-line cutting (e.g., vehicle pedals) | Ra≤25 μm, high efficiency | Speed 3000 rpm, carbide saw blade |
| Handheld power tools | On-site trimming, small batches | Ra≥50 μm, requires post-processing | Cutting depth ≤6 mm, lubricant + forced cooling |
2.Key points for cutting tool selection
Saw blade type
Carbide saw blade: tooth angle 15°–25°, anti-stick aluminum coating (DLC/TiN) increases life by 30%; Laser special nozzle: diameter 0.2–0.5mm, nitrogen purity ≥99.99% to prevent cut oxidation.
Equipment matching
Thickness ≤3mm: fiber laser cutting machine (fast speed, low energy consumption) is preferred; Thickness 3–10mm: high torque circular saw (motor power ≥2.2kW) is used.
3.Key operating procedures and safety regulations
Pretreatment steps
Positioning and fixing: use magnetic fixtures or vacuum adsorption tables, offset error ≤0.5mm; Cleaning surface: remove oil and impurities to avoid cutting sparks causing combustion. Cutting parameter control
Laser cutting: Focus position ±0.1mm adjustment, pulse width 0.5–2ms to reduce slag; Circular saw cutting: Feed speed 0.5–2m/min, lubricant flow ≥10ml/min.
Safety protection
Personal equipment: Wear ANSI Z87.1 certified goggles and fireproof gloves; Equipment inspection: Verify the emergency stop button and protective cover function before starting the machine every day.
4. Post-processing and quality verification
Deburring
Use 60–180 grit sandpaper for manual polishing, or vibration polishing machine for processing (time ≤5min); Dimension detection
Caliper measurement tolerance: ±0.2mm for thickness ≤3mm, ±0.5mm for thickness >3mm; Incision evaluation
Qualified standard: No cracks, nodules, verticality deviation ≤1°. Summary: The cutting process of aluminum alloy patterned plate should be selected according to thickness (Laser cutting ≤8mm is preferred) and scenario (High-pressure water cutting is suitable for complex shapes). Safety regulations must be strictly followed during operation (Wear fireproof protective gear) and cutting parameters must be controlled (Circular saw speed ≥3000rpm) to ensure quality.
