Anodized Aluminum Laser Marking
When it comes to marking aluminum, the most common laser process is laser etching. With this process, you can mark anodized aluminum on the surface of the anodized layer. This allows you to keep the material’s high resistance to corrosion and abrasive wear. Laser etching also allows you to mark the bare aluminum before the anodizing process. You can thus implement traceability at the beginning of production.
If you have additional surface treatments before the anodizing process, you may need laser engraving. This process engraves the most resistant marks on the bare aluminum, making sure that they keep their high readability after surface treatments.
The result of laser etching and engraving aluminum is a mark that has a high contrast with the anodization color. Laser marking creates permanent markings for all sorts of identifiers. Common applications include marking data matrix codes, QR codes, barcodes, serial numbers, and logos.