High-quality dark markings on anodized aluminum
Anodized aluminium is the ideal material for engraving with a laser because of the quick processing time, as well as the high quality of the finished product. By using a laser, the anodized top layer is removed and simultaneously a white marking is generated. This is particularly well suited for colored anodized coatings. However, when using natural anodized aluminium, these markings are not clearly visible. Because of this, black marking is considered to be of significantly higher quality. By using a MOPA laser with natural anodized aluminium, it allows the material to be marked in various tones of grey and even a rich black. This process is also used to mark high-quality smartphones, among other applications.