Onyx laser cleaning visualization showing process effects
Yi-Chun Lin
Yi-Chun LinPh.D.Taiwan
Laser Materials Processing
Published
Jan 6, 2026

Onyx Settings

When laser cleaning onyx, make sure you watch its banded layers closely, unlike smoother marbles that heat evenly—onyx absorbs energy fast because of its dense quartz makeup, so start with lower power to prevent cracking those fine stripes. You must adjust scan speeds slower than for granites, since its poor heat spread traps warmth locally and risks surface checks if you rush. This keeps the natural polish intact for heritage pieces, avoiding dull spots from overexposure.

Onyx Machine Settings

Optimal laser parameters and equipment specifications

Wavelength

1,064
nm
355
1,064
1.1e4

Spot Size

300
μm
0.1
300
500

Energy Density

1.5
J/cm²
0.1
1.5
20

Pulse Width

20
ns
0.1
20
1,000

Scan Speed

500
mm/s
10
500
5,000

Pass Count

2
passes
1
2
10

Overlap Ratio

50
%
10
50
90

Dwell Time

200
μs
0.2
200
200

Laser Power

100
W
1
100
120

Laser Power Alternative

100
W
50
100
500

Frequency

30
kHz
1
30
200

Onyx Material Safety

Shows damage risk across parameter space. Green = safe, Red = damage danger.
SAFE
Fluence:1.77 J/cm²
From optimal:33%
Pulse Duration (ns)
1000
750
500
250
0
0
33
67
100
133
167
200
Power (W)

Onyx Energy Coupling

Shows laser energy transfer efficiency. Green = high coupling (energy absorbed), Red = poor coupling (energy reflected).
MODERATE
Fluence:— J/cm²
From optimal:42%
Pulse Duration (ns)
1000
750
500
250
0
0
33
67
100
133
167
200
Power (W)

Onyx Thermal Stress Risk

Shows thermal stress and distortion risk. Green = low stress risk, Red = high stress/warping/cracking risk.
ELEVATED
Fluence:— J/cm²
From optimal:50%
Pulse Duration (ns)
1000
750
500
250
0
0
33
67
100
133
167
200
Power (W)

Onyx Cleaning Efficiency

Shows cleaning performance across parameter space. Green = optimal effectiveness, Red = ineffective.
EXCELLENT
Fluence:1.77 J/cm²
From optimal:13%
Pulse Duration (ns)
1000
750
500
250
0
0
33
67
100
133
167
200
Power (W)

Onyx Heat Buildup

Excellent

Heat Safety

Heat Control

Cooling Efficiency

Pass Optimization

📈 Heat Profile

Safe (<150°C)
Damage (>250°C)
0°C100°C200°C300°C✓ Safe🚨 Damage20°CPass 1Pass 2

🔧 Laser Settings

Pulse Energy:2000.00 mJ
Total Sim Time:60.4s

🌡️ Live Temperature

20°C
✅ Safe
Pass 1 of 2
Time: 0.0s / 60.4s

▶️ Simulation Controls

Diagnostic & Prevention Center

Proactive strategies and reactive solutions for onyx

Prevention First

Proactive strategies to avoid problems before they occur

other • medium severity

Impact

Prevention Solutions

    Fix Issues

    Symptom-based diagnosis and solutions for active problems

    No troubleshooting guides available for this material.

    Quick Reference

    At-a-glance overview with severity matrix and decision support

    Challenges by Severity

    Medium Priority (1)

    • •

    Common Issues

    No common issues documented.

    Quick Decision Helper

    →Start with Prevention First tab before beginning work
    →Use Fix Issues tab when problems occur
    →Focus on Critical and High severity items first

    Onyx Dataset

    Download Onyx properties, specifications, and parameters in machine-readable formats
    39
    Variables
    0
    Laser Parameters
    0
    Material Methods
    11
    Properties
    3
    Standards
    3
    Formats
    View all Stone datasets

    License: Creative Commons BY 4.0 • Free to use with attribution •Learn more

    Parameter Relationships

    Shows how changing one parameter physically affects others. Click any node to see its downstream impacts and role.
    WavelengthSpotSizeEnergyDensityPulseWidthScanSpeedPassCountOverlapRatioDwellTimeLaserPowerLaserPowerAlternativeFrequency

    Spot Size

    Directly affects Scan Speed and Energy Density. Increase this to amplify downstream effects.

    Energy Density

    Smaller spots concentrate energy into a smaller area.

    Scan Speed

    A bigger spot lets you scan faster while keeping good coverage.

    Common Challenges

    Technical challenges and optimization strategies for these settings
    ThermalManagement
    • [object Object]
    • [object Object]
    ContaminationChallenges
    • [object Object]

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