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Aluminium laser engraving machines are a great way of marking on anodized aluminium. A fiber laser and a CO2 laser are both capable of marking an anodized aluminium, but they mark varying colours on the layer. The CO2 laser produces a great contrast and a nice engraving, a fiber laser on the other hand is highly effective in marking anodized aluminium.

In several cases, aluminium laser engraving machines remove the coating on the aluminum by vaporizing it away. The chemistry that affects the surface of the aluminum after marking is that a naturally occurring oxide forms on the exposed surface of the aluminum substrate after marking. There are 3 types of laser marks that can be performed on aluminium. They are engraving, ablation (removing an anodized coating or chemical film), and dark marking.

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