Creating high-quality dark markings on anodised aluminium
Anodised aluminium is an excellent material for laser processing, and can be quickly processed. The anodised layer is removed by the laser and a white mark is created. This is particularly well suited for coloured anodised coatings. In the case of natural anodised aluminium, however, this marking is not clearly visible, and black marking is also of significantly higher quality. With a MOPA laser source, natural anodised aluminium can be laser-marked in various grey tones up to a rich black. This process can be used to mark high-quality smartphones, among other laser marking applications.