1000W Fiber Laser Cutting Parameters (Complete Guide & Speed Chart 2026)
Publishing time：
Jul 01,2026
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Source：
knoppo cnc
1000W Fiber Laser Cutting Parameters (Complete Guide & Speed Chart 2026)
Meta Title
1000W Fiber Laser Cutting Parameters | Speed Chart for Carbon Steel, Stainless Steel & Aluminum
Meta Description
Discover the recommended cutting parameters for a 1000W fiber laser cutting machine, including cutting speed, gas pressure, focus position, nozzle selection, and optimization tips for carbon steel, stainless steel, and aluminum.
1000W Fiber Laser Cutting Parameters
Choosing the correct cutting parameters is essential for achieving clean edges, high productivity, and long machine life. Improper settings can cause burrs, excessive slag, unstable cutting, and wasted production time.
This guide provides recommended cutting parameters for a 1000W fiber laser cutting machine and practical tips based on industrial manufacturing experience.
Recommended Materials for a 1000W Fiber Laser
A 1000W fiber laser is ideal for processing thin to medium-thickness sheet metal, including:
- Carbon Steel
- Stainless Steel
- Aluminum
- Galvanized Steel
- Brass (thin sheets)
- Copper (thin sheets)
Typical cutting capacity:
| Material | Recommended Thickness |
|---|---|
| Carbon Steel | 0.5–10 mm |
| Stainless Steel | 0.5–5 mm |
| Aluminum | 0.5–3 mm |
| Brass | 0.5–3 mm |
| Copper | 0.5–2 mm |
Carbon Steel Cutting Parameters (1000W)
| Thickness | Speed (m/min) | Assist Gas | Gas Pressure | Focus Position |
|---|---|---|---|---|
| 1 mm | 24–26 | Oxygen | 0.6–0.9 bar | 0 mm |
| 2 mm | 8–9 | Oxygen | 0.6–0.9 bar | +5 mm |
| 3 mm | 2.8–3.2 | Oxygen | 0.6–0.9 bar | +5 mm |
| 4 mm | 2.2–2.4 | Oxygen | 0.8 bar | +3 mm |
| 5 mm | 1.5–1.7 | Oxygen | 0.8 bar | +3 mm |
| 6 mm | 1.2–1.4 | Oxygen | 0.8 bar | +3 mm |
Recommended Nozzle
- Double Layer Nozzle
- Diameter: 1.5–3.0 mm
Stainless Steel Cutting Parameters
Stainless steel is generally cut with high-purity nitrogen to produce bright, oxidation-free edges.
| Thickness | Speed (m/min) | Gas | Pressure |
|---|---|---|---|
| 1 mm | 21–23 | Nitrogen | 20 bar |
| 2 mm | 6.5–7 | Nitrogen | 20 bar |
| 3 mm | 2.3–2.5 | Nitrogen | 20 bar |
| 4 mm | 0.8–1 | Nitrogen | 20 bar |
| 5 mm | 0.6–0.7 | Nitrogen | 20 bar |
Recommended nozzle:
- Single Layer Nozzle
- Diameter: 1.5–3.5 mm
Aluminum Cutting Parameters
Because aluminum reflects laser energy more than carbon steel, lower cutting speeds are required.
| Thickness | Speed (m/min) | Gas | Pressure |
|---|---|---|---|
| 1 mm | 19–21 | Nitrogen | 20 bar |
| 2 mm | 4.5–5 | Nitrogen | 20 bar |
| 3 mm | 1.8–2 | Nitrogen | 20 bar |
How to Optimize Cutting Quality
To achieve the best cutting results, adjust the following parameters together rather than changing only one setting.
Focus Position
Incorrect focus is one of the most common causes of poor cutting quality.
General recommendation:
- Carbon Steel: Positive focus
- Stainless Steel: Negative focus
- Aluminum: Slight negative focus
Assist Gas Selection
| Material | Recommended Gas |
|---|---|
| Carbon Steel | Oxygen |
| Stainless Steel | Nitrogen |
| Aluminum | Nitrogen |
| Brass | Nitrogen |
| Copper | Nitrogen |
Nozzle Selection
Choose the correct nozzle diameter according to material thickness.
Thin sheets:
- 1.2 mm
- 1.5 mm
Medium thickness:
- 2.0 mm
- 2.5 mm
Thick plates:
- 3.0 mm
A damaged or contaminated nozzle can significantly reduce cutting quality.
Common Cutting Problems
Burrs on the Bottom Edge
Possible causes:
- Cutting speed too fast
- Focus position incorrect
- Gas pressure too low
- Worn nozzle
Incomplete Cutting
Possible causes:
- Laser power insufficient
- Speed too high
- Dirty protective lens
- Beam alignment deviation
Rough Cutting Surface
Possible causes:
- Incorrect gas pressure
- Poor focus adjustment
- Optical contamination
- Machine vibration
Tips for Better Performance
- Clean the protective lens regularly.
- Replace worn nozzles promptly.
- Use high-purity assist gas.
- Keep the laser head properly calibrated.
- Perform regular machine maintenance.
- Check beam alignment after replacing optical components.
Conclusion
Proper parameter selection directly affects productivity, cutting quality, and operating costs. Although the values provided above are suitable for most 1000W fiber laser cutting machines, the optimal settings may vary depending on the laser source, cutting head, controller, material grade, and workshop environment.
Fine adjustments based on actual production conditions are always recommended to achieve the best cutting performance.
Q1. What is the maximum cutting thickness of a 1000W fiber laser?
A: Under optimized conditions, a 1000W fiber laser can cut carbon steel up to 10 mm, stainless steel up to 5 mm, and aluminum up to 3 mm.
Q2. Should I use oxygen or nitrogen for carbon steel?
A: Oxygen is commonly used for thicker carbon steel because it increases cutting efficiency, while nitrogen is preferred when oxidation-free edges are required.
Q3. Why does my laser cutting produce burrs?
A: Burrs are usually caused by incorrect cutting speed, improper focus position, insufficient gas pressure, or a worn nozzle.
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