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January 23, 2026Laser Engraving Parameters & Process Guidelines (60/80W & 120W/100W MOPA Systems)
1. General Parameter Recommendations for Standard Power Systems (60/80W)
| Process Type | Speed | Power | Core Notes |
|---|---|---|---|
| Standard Engraving | 800-1500 | 50% | Universal baseline parameters for most material engraving needs |
| Deep Engraving | 2500 | 90% | Balance of high speed and high power to avoid material damage from low-speed, high-power settings |
| Surface Cleaning | 2500 | 20% | Low-power mode to prevent substrate damage |
2. Practical Engraving Parameters for 80W JPT MOPA (150mm Lens) on Aluminum (50mm×50mm Size)
2.1 Engraving Parameters
- Speed: 1700
- Power: 80%
- Pulse Parameters: 500ns @ 40kHz
- Layered Process: 3-level hatch spacing (0.08mm→0.05mm→0.03mm) with edge offsetting (0.1mm→0.05mm→0.01mm)
- For a real-world reference on similar MOPA processes, see Coin Etching Process on 60W MOPA Laser (OMG-X)
2.2 Cleaning Parameters
- Speed: 5000
- Power: 30%
- Pulse Parameters: 500ns @ 40kHz
3. Parameter Characteristics & Process Warnings for High-Power Systems
3.1 Power Output Characteristics of 100W JPT M7
- Full Power Conditions: 75kHz frequency + 200ns pulse width
- Core Logic: Speed affects energy delivery efficiency per unit time. Frequency and pulse width must be matched to balance power and speed (Fiber Laser Frequency Setting Explained: For Metal Engraving & Beyond)
3.2 Practical Experience with 120W System (200mm Lens)
- Maximum Power Range: 50%-75%
- Recommended Speed Range: 1500-2500
- Frequency for Full Power: 90kHz (peak power output at this parameter)
- Process Warning: Low speed combined with high power tends to cause surface burning and warping, especially for thin aluminum sheets and other easily deformable materials. Balancing power and speed is critical for ensuring processing quality.
4. Relationship Between Pulse Parameters (Frequency/Pulse Width) & Process Effects
| Parameter Combination | Process Tendency | Application Scenarios |
|---|---|---|
| High Frequency + Low Pulse Width (e.g., 9ns-2ns pulse width) | Annealing/Surface Brightening | Surface bright annealing of aluminum and carbon steel |
| Pulse Width 2 + Frequency 3900 | Material-specific validation required | Needs adjustment for different materials (e.g., aluminum vs. 1018 carbon steel); not confirmed as universal maximum material removal parameters |
| 500ns Pulse Width + 40kHz Frequency | Engraving/Cleaning | Baseline parameters for aluminum engraving and surface cleaning with 80W MOPA systems (Understanding Fiber Laser Settings: Speed, Power, Frequency, and Q-Pulse) |
5. Core Principles for Processing Different Materials
Parameter adjustments are required based on material differences (aluminum vs. 1018 carbon steel):
- Aluminum: High thermal conductivity requires controlled energy input per unit time to avoid deformation. High frequency + low pulse width is applicable for annealing processes.
- 1018 Carbon Steel: Higher hardness than aluminum allows for moderate power increase, but speed must still be matched to prevent surface over-burning.
