mobil-mark® marks a variety of materials.
The laser uses a wave length of 1064 nm and can be used in continuous wave (cw) mode, as well as in pulsed mode. Pulse peaks of up to 30 kW allow the use with high thermal applications, for example, steel heat coloration and engraving, and excellent discoloration of plastics. With the direct marking of parts of metal, plastics, rubber, latex, ceramics, wood, glass, as well as plastic films and foils, you achieve a durable, abrasion-proof and forgery-proof result. Depending on the material there are different procedures to be used. Regardless of which of the available processes you choose to use: the laser marking results are quite remarkable.
We offer the following procedures:
During this procedure, special laser colors are being fused onto the part with the energy of the laser beam. The application height amounts to only fractions of a millimeter. In this manner lettering in different colors are created, while the surface is left almost unchanged. The application procedure is especially well suited for glass and ceramics.
Frothing and carbonization
During frothing gas bubbles are being created in the surface. A slightly elevated label emerges and a color change sets in. The gas bubbles generate a light, white or grey marking in plastics. During carbonization the conversion from plastics to carbon results in a dark marking.
A widely used technique is the lasering off or “shooting off” of color layers. This technique removes the paint from specific spots on a lacquered part, thereby generating markings, such as symbols and logos.
The annealing marking is especially suitable for stainless steel. Depending on the material very high contrast is achieved and no ablation occurs.
The engraving leaves an indentation on the part. The immense pulse energy of several kilowatts, which only lasts billionths of a second, shoots the material and an ablation, like the one resulting from sandblasting, is generated. Throughout, the material itself stays virtually cold, so that even very thin sheet metals can be labeled.
Marking with inert gas
To improve the corrosion resistance of the laser engraving of alloyed steel, the laser head can be supplied with inert gas (e.g. nitrogen).