How to Set Handheld Fiber Laser Marking Machine Marking Parameters

Setting the marking parameters for a handheld fiber laser marking machine correctly is crucial for achieving high-quality, precise, and efficient results. Below is a step-by-step guide to help you optimize the settings:

1. Basic Parameter Setup

Laser Power (%)

• Recommended Range: 20%–80% (varies by material)

• Low Power (20%-40%) – Suitable for delicate materials (e.g., plastics, anodized aluminum).

• Medium Power (40%-60%) – Works well for coated metals, paint, and some plastics.

• High Power (60%-80%) – Best for deep engraving on metals (stainless steel, titanium).

Marking Speed (mm/s)

• Faster Speed (1000–2000 mm/s) – Light surface marking (logos, QR codes).

• Slower Speed (100–500 mm/s) – Deep engraving or harder materials.

Frequency (kHz)

• Low Frequency (20–50 kHz) – Better for deep engraving (metals).

• High Frequency (80–150 kHz) – Smoother surface marking (plastics, anodized aluminum).

Fill Spacing (Hatch Distance, mm)

• Smaller Spacing (0.01–0.05 mm) – Denser fill for darker marks.

• Larger Spacing (0.05–0.1 mm) – Faster marking with lighter results.

Pulse Width (ns)

• Short Pulse (<100 ns) – Fine details (high precision).

• Long Pulse (>100 ns) – Better for deep engraving.

2. Material-Specific Settings

Stainless Steel / Metals

• Power: 50%–70%

• Speed: 300–800 mm/s

• Frequency: 30–50 kHz

• Fill Spacing: 0.03–0.06 mm

Aluminum (Anodized or Bare)

• Power: 30%–60%

• Speed: 500–1200 mm/s

• Frequency: 50–100 kHz

Plastics & PVC

• Power: 20%–40% (avoid burning)

• Speed: 800–1500 mm/s

• Frequency: 80–120 kHz

Glass & Ceramics

• Power: 20%–40% (use low power to prevent cracking)

• Speed: 200–500 mm/s

3. Advanced Adjustments

• Scanning Mode:

• Single-Line Mode – For text and fine lines.

• Cross-Hatch Mode – For filled areas (logos, barcodes).

• Defocusing (Z-Height Adjustment):

• Slightly defocusing (~1–2 mm above/below surface) can improve marking clarity.

• Air Assist (if available):

• Helps reduce debris and heat buildup (recommended for metals).

4. Testing & Optimization

1. Start with Default Settings (from the machine manual).

2. Run a Test Mark on a sample piece.

3. Adjust Parameters incrementally (e.g., increase power if too faint, reduce speed if burning occurs).

4. Save Custom Presets for different materials.

5. Common Issues & Fixes