Aluminum is one of the most commonly marked substrates and is used in many industries.

Typically, with lighter marking intensity, aluminum will turn white.

It looks good when the aluminum is anodized, but white marking is not ideal for bare and cast aluminum.

More intense laser settings provide a dark grey or charcoal color.
ZGG Laser marking machine is capable of marking on aluminum and the ideal system for your application depends on your laser marking requirements.

Ablation is the most common marking technique for anodized aluminum, but some cases call for etching or engraving.

Bare and Cast aluminums are typically annealed (resulting in a white color) unless a specification calls for greater depth and contrast.