MOPA Fiber Laser Engraving Color Sign on Metal Card

The common metal cards are made of brass as raw materials, refined through polishing, corrosion, electroplating, coloring, packaging and other assembly-line procedures. It can be used as a high-end VIP card, membership card, discount card, delivery card, personal business card, amulet, magnetic stripe card, IC card. With the innovation of technology, the metal card industry gradually adopts stainless steel as raw materials, breaking through the limitations of traditional gold and silver cards, and making metal cards more beautiful and diverse.

Color engraving on stainless steel, titanium, or chromium as a process is known for sometime but still it has not been used widely in the industry. Some industrial applications have been seen. New MOPA fiber laser engravers allow independent tuning different laser parameters and the marking process can be optimized for producing colors with better quality and visual appearance. Laser processing of metal surfaces creates an oxide layer on the surface. The thickness of this layer defines how white light is reflected from the sample. What in principle is only a thin oxide layer on the surface can be seen as different colors by the viewer. In this video, the visual appearance of laser engraved surfaces was optimized by varying different laser parameters. The aim was to create a uniform oxide layers on the surface which would appear as a high quality color engraving. The engraved quality was evaluated by visual examination. Relation of different laser parameters to produced color is discussed based on these results. 

MOPA Fiber Laser Engraver Applications

1. Alumine sheet stripped surface,No deformation,fine marking.

2. Alumine sheet black color marking.

3. Metal depth marking.

4. Stainless steel color marking, It can marking different colors by setting the parameters.

5. PC, ABS plastic Without yellow color, smooth.

6. Light transmission paint keyboard, easy to make it pervious to light.

7. Electronic,semiconductor components, ITO precision machining, the pulse can be adjusted to get best facula, and make the power balance.