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Corrugated Cardboard
When cutting corrugated paper, the cardboard might catch
on fire due to the misfocus on the downward layer. Spray
the board with water to reduce the chance of burning.
4.6 GLASS
Glass cracks easily, so the laser power should not be too
powerful. Choose thick glass materials for better flexibility.
4.7 METAL
Anodized Aluminum
Anodic treatment is a surface treatment that forms
an oxide layer on the aluminum alloy. Through laser
engraving, the surface oxide layer will be decomposed.
Stainless Steel (with coating or Hybrid Laser)
Stainless steel reflects most of the energy from a CO2
laser due to its wavelength. So special oxidants are
required to allow the stainless steel to oxidize and darken
at relatively low temperatures and darken the color. Wear
work gloves when applying the coating. If you're using
Hybrid Laser, the laser can engrave on stainless steel
