Using our LPQ series fiber laser configured with a 160mm focal length lens and testing various parameters, the automotive bearing was surface marked with 18 watts of power at 80 kHz and 4 inches per second. The total cycle time for the marks as shown was 6.82 seconds. Due to the high carbon content of the steel, an extremely dark permanent mark was produced with no surface penetration or material degradation. In conclusion, the beam quality and mode structure provided for excellent results at a high rate of speed.
