Anodized aluminum black marking by Mopa fiber laser marking machine

Anodized aluminum refers to a material that electrolyzes the surface of aluminum products to form a layer of oxide film under specific electrolyte and process conditions, thereby changing the surface coloring, corrosion resistance, acid and alkali resistance, and electrical insulation of ordinary aluminum materials.

Use laser to black mark the surface of anodized aluminum material for product identification, anti-counterfeiting, statistics and traceability.

Different from ordinary blackened stainless steel, aluminum can be grayed or dark gray aluminum oxide (anodized aluminum), but due to the high reflectivity of the material and low light absorption rate, it cannot be blackened, and the same is true for copper.

Black marking on the surface of anodized aluminum using mopa fiber laser marking machine was first applied to iPhone4s mobile phone casing, and later other mobile phone manufacturers also used this process one after another