Laser Marking of Metals

Different Marking Methods

Depending on the requirement profile, different laser marking methods are available.

Annealing
Laserbeschriften

Annealing

Laser annealing is used with all metals which show a color change when exposed to heat and oxygen. The laser marker selectively heats up small spots of the workpiece surface until annealing colors appear. Annealing leaves the material surface unharmed but still produces high-contrast, clearly legible markings.

 

Blackmarking
Laserbeschriften

Blackmarking

Blackmarking is a solution for direct marking of stainless steel alloys. The ultrashort-pulse laser technology doesn't introduce any significant heat and produces a high quality, high contrast mark regardless of the viewing angle. The process is particularly suitable for the implementation of the Unique Device Identification (UDI) in the medical industry, as well as for blackening of anodized aluminium surfaces and interesting for EMS-providers.

Laser Engraving
Laserbeschriften

Laser Engraving

Usually the laser marker engraves the material surface down to some 10 ┬Ám in depth. Engraved marks are exceptionally durable and can only be removed by heavy grinding. Therefore laser engraving is used for forgery-proof product marking.

 

Surface Removal
Laserbeschriften

Surface Removal

Selective ablation of lacquer coats or anodizing layers shows a different-colored material underneath and produces colored markings.

 

Features at a Glance

Product recommendation

Product recommendation

For this applications we recommend the laser markers: PowerLine E Air Serie, PowerLine E Serie, PowerLine F 20/F 30, PowerLine Rapid NX.



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