We investigated the dynamics of LSFL (Low Spatial Frequency LIPSS) evolution on the titanium alloy surface. To create them, 12 W picosecond 1.064 μm laser with a pulse repetition rate from 50 kHz to 500 kHz was used. For different laser repetition rate (500, 150, 100 and 50 kHz), the ranges of LSFL periods and peak Fluence of pulse (Fp) for which the maximum period is reached were determined. We also determined the laser parameters at which the resulting LSFL have good quality and uniformity, regardless of the initial surface roughness.

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Lasermarkiersysteme haben sich in den letzten Jahrzehnten zu einem anerkannten Werkzeug für die Teilekennzeichnung etabliert. Grundlage dafür waren zunächst Bogenlampengepumpte Festkörperlaser sowie CO2‐Laser.

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