Safe
124°C+126°C
Yi-Chun LinPh.D.Taiwan
Laser Materials ProcessingOnyx Laser Cleaning 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
Power Range
100
W
1
100
120
Wavelength
1,064
nm
355
1,064
1.1e4
Spot Size
50
μm
0.1
50
500
Repetition Rate
50
kHz
1
50
200
Energy Density
5.1
J/cm²
0.1
5.1
20
Pulse Width
10
ns
0.1
10
1,000
Scan Speed
500
mm/s
10
500
5,000
Pass Count
3
passes
1
3
10
Overlap Ratio
50
%
10
50
90
Dwell Time
200
μs
0
200
400
Onyx Material Safety
Shows damage risk across parameter space. Green = safe, Red = damage danger.
Pulse
DANGER
Fluence:101.86 J/cm²
From optimal:71%
Pulse Duration (ns)
1000
750
500
250
0
1
21
41
61
80
100
120
Onyx Energy Coupling
Shows laser energy transfer efficiency. Green = high coupling (energy absorbed), Red = poor coupling (energy reflected).
Pulse
SUBOPTIMAL
Fluence:— J/cm²
From optimal:46%
Pulse Duration (ns)
1000
750
500
250
0
1
21
41
61
80
100
120
Onyx Thermal Stress Risk
Shows thermal stress and distortion risk. Green = low stress risk, Red = high stress/warping/cracking risk.
Pulse
HIGH RISK
Fluence:— J/cm²
From optimal:63%
Pulse Duration (ns)
1000
750
500
250
0
1
21
41
61
80
100
120
Onyx Cleaning Efficiency
Shows cleaning performance across parameter space. Green = optimal effectiveness, Red = ineffective.
Pulse
GOOD
Fluence:101.86 J/cm²
From optimal:33%
Pulse Duration (ns)
1000
750
500
250
0
1
21
41
61
80
100
120
Onyx Heat Buildup
See if your multi-pass cleaning will overheat and damage the material
Heat Safety
100%40%
Heat Control
71%25%
Cooling Efficiency
83%20%
Pass Optimization
100%15%
📈 Heat Profile
Safe (<150°C)
Damage (>250°C)
🔧 Laser Settings
Pulse Energy:2000.00 mJ
Total Sim Time:90.6s
🌡️ Live Temperature
20°C
✅ Safe
Pass 1 of 3
Time: 0.0s / 90.6s
▶️ Simulation Controls
Diagnostic & Prevention Center
Proactive strategies and reactive solutions for onyx
🌡️thermal management
Heat accumulation
Impact: Excessive heat can damage substrate or alter material properties
Solutions:
- ✓Reduce repetition rate
- ✓Increase scan speed
- ✓Add cooling time between passes
Prevention: Monitor surface temperature and adjust parameters accordingly
🔍surface characteristics
Variable surface roughness
Impact: Inconsistent cleaning results across different surface textures
Solutions:
- ✓Adjust energy density based on surface condition
- ✓Use multiple passes with progressive settings
- ✓Pre-characterize surface before cleaning
Prevention: Standardize surface preparation procedures
Onyx Dataset Download
Parameter Relationships
Shows how changing one parameter physically affects others. Click any node to see its downstream impacts and role.
Power Range
Amplifies damage risk in Pulse Width and Energy Density. Keep low to maintain safety margins.
Spot Size
Same power in a smaller spot creates much higher energy density.
Energy Density
Higher power delivers more energy per pulse, removing more material.
Pulse Width
More power means higher peak intensity. Too much can damage the material.
Pass Count
Using more passes means you can use lower power and still get the job done.
