Marking
- Special marking is possible using femtosecond lasers.
- Black marking
- This method uses short pulse lasers to achieve high visibility black coloration while minimizing thermal damage to the material surface and not altering the material's properties.
Color Processing (Structural Color)
- Coloration through light interference by forming a periodic structure on the surface.
Coloring Processing
- Coloration can be achieved by interference of light with the oxide film formed on the metal surface.