The 3 Laser Marking Processes at Idenco
During engraving, the laser “etches” into the surface of the metal. If there is no colored anodization, the contrast will be lower.
The mark is permanent and, depending on the metal, can be oxidized to produce a black finish.
Engraving
During engraving, the laser “etches” into the surface of the metal. If there is no colored anodization, the contrast will be lower. The mark is permanent and, depending on the metal, can be oxidized to produce a black finish.
Annealing (Marking)
The laser can also perform an “annealing” process, also referred to as marking, on stainless steel. In this case, the laser activates the oxidizable layer to create a black mark without depth (no engraving). This technique is not available for aluminum with our current laser equipment (a specific type of laser is required). However, we can use a marking compound on unsealed aluminum, steel, and brass to achieve colored markings (black, red, etc.).
Foaming
The final process is called “foaming,” where the laser overheats the material to create blackened bubbles within the oxidizable layer.
This results in a slightly raised black mark with a somewhat textured (“hair-like”) feel. This technique is compatible with brass.
Laser Marking Specifications at Idenco
Engraving Depth:
We can engrave up to 0.004″ deep
Maximum Size:
Our equipment allows engraving up to 36″ × 40″
Minimum Text Height:
To ensure readability, text cannot be smaller than 1 mm
Materials
- Stainless Steel
- Anodized Aluminum
- Brass
- Laminated Plastic
Available Material Thicknesses
Stainless Steel:
• 0,025’’ • 0,032’’ • 0,037’’ • 0,0625’’ • 0,125’’ • 0,1875’’ • 0,250’’
Anodized Aluminum:
• 0,003’’ • 0,005’’ • 0,008’’ • 0,012’’ • 0,020’’ • 0,032’’ • 0,040’’ • 0,0625’’ • 0,080’’ • 0,090’’ • 0,125’’ • 0,1875’’ • 0,250’’
Brass:
• 0,032’’ • 0,062’’
