Thanks to its passivation, chromium is resistant to corrosion. It is therefore often used as a coating metal for chrome plating. Very good results can be achieved with the laser engraving of chrome-plated surfaces . Engraving of silver and gold is mainly used for jewelry: whether wedding rings, watches, necklaces or similar.
When laser engraving brass, black engraving or white engraving is usually used. Black engraving involves strong laser engraving at very high intensities. An oxidation process takes place, so that the engraving appears dark grey. This type of engraving is popular, for example, in the production of engraved brass doorplates.
Various types of laser marking can be used for iron and ferrous metals such as steel and stainless steel. A distinction is made between laser engraving, annealing and material layer removal . You can read about the special features of these labeling processes in our blog article.
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In principle , laser engraving can also be done on aluminum and aluminum alloys without a coating. With the anodized aluminum, however, a particularly good contrast can be achieved. Aluminum components are labeled by laser engraving, aluminum nameplates are made, etc. The brass-plated aluminum creates a gold-colored engraving.
Laser engraving is the permanent labeling or marking of objects using a laser beam. The engraving is done without contact by removing material. The engraved motif remains smudge-proof, weatherproof and time-resistant. Which metals can be engraved? Does the surface need to be pre-treated?
