Laser Engraving Graphite

The parts were engraved with a 20 watt q-switched ytterbium fiber laser and 160 mm focal length lens. The 160mm focal length lens has a working distance of 176mm from lens to part. The marks were done at 3 different depths using 2 passes, 4 passes and 6 passes. The artwork on the part was duplicated.

Process Parameters:
Material: Graphite

Power: 18 Watt

Method used: Engraving

Frequency: 25 kHz

Depth: Various

Speed: 5 inch\sec

Laser Type: Q-Switched Fiber Laser

Focal Length Lens: 160mm

Cycle Time:

Marks 1 – 2 Passes – 32.59 Seconds

Marks 2 – 4 Passes – 65.17 Seconds

Marks 3 – 6 Passes – 97.75 Seconds

Laser Engraving Steel

Laser Engraving Application:

Laser engraving was accomplished using a 20-Watt Fiber Laser using a 160 mm lens. The steel was engraved using 18 Watts of power, frequency of 25 kHz, speed of 10" per second, resulting in a cycle time of 2.75 seconds per row of numbers.

Technology: Q-Switched Fiber Laser

Wattage: 20 Watt

Wavelength: 1060nm - 1070nm

Focal Length Lens: 160mm