Process Parameters: Large Parts – Dark Coating, Light Etch

Material: Steel
Power: 17 Watt
Method used: Etching
Frequency: 80 kHz
Depth: Surface
Speed: 3 inchsec
Laser Type: Q-Switched Fiber Laser
Focal Length Lens: 160mm (170mm WD)
Cycle Time: 2.51 Seconds

Process Parameters: Large Parts – No Coating, Anneal

Material: Steel
Power: 7 Watt
Method used: Anneal
Frequency: 35 kHz
Depth: Surface
Speed: 10 inchsec
Laser Type: Q-Switched Fiber Laser
Focal Length Lens: 160mm (170mm WD) Cycle Time: 0.89 Seconds

All samples were marked with the 20 Watt Fiber Laser Marking system using a 160 mm lens. The parts with a dark coating were marked with a light etch to create a contrasting mark. All the uncoated parts were marked with a dark surface anneal to create a good contrast.