What is and how does laser ablation work?
LASER ABLATION is the process of removing layers from a surface using a laser beam focused on the zone. At low laser flux, coatings are heated and absorbed by laser’s energy and then, evaporated. Laser ablation is used for a different industries and applications, the more common model for the ablation process is a pulsed fiber laser, due to its intensity.
The efficacy of the laser depends on different factors:
Wave length - For an efficient result, we need a minimum absorption depth to achieve a high energy in a small volume.
Pulse Duration- Shorter pulse durations minimize thermal damages on the immediate area (already very reduced as a result of the accurate features of the laser ablation) and allow to achieve maximum power.
Pulse Repetition Frequency - It has to be high enough to maintain the heat caused by laser ablation. This will result in a more successful ablation without wasting energy.
Beam - The laser beam quality has to be good enough to perform the ablation process efficiently. This quality will be settled by the brightness, the focus position and the consistency.
L.A. presents interesting advantages in front of other common systems, which are costly, unproductive and damage the environment. L.A. is a much more efficient, reliable and profitable method. Another advantage is that no solvents are used, so it is environmentally friendly and operators are not exposed to chemicals.