Cerlase : APPLICATIONS : LASER CUTTING

Laser cutting in 2D and 3D
Cutting with the laser is a thermal process without contact which is used to separate materials. The laser is focused by a lens, through tube in which arrives a gas of assistance coaxially to the beam. For the CO2 lasers, the applications are very varied. It does as well for cutting the paperboard and wood as the plastics and metals. But the most widespread use remains the cutting of steels on thicknesses going up to 15 to 20 mm with powers from 500 to 2000 W and the speeds ranging between 0, 8 and 10 m/min.
Cutting by continuous lasers YAG is resembling with that of the laser CO2, but taking into account its wavelength 10 times lower, it is interesting to use it for the material cutting with high factor of reflexion (aluminium, copper, certain composite materials...).

Cutting with laser YAG

Reserved almost exclusively for metallic materials

Possible transport of laser beam by optical fibre

Limited thinckless of cutting

Precision of displacement +/- 1 µm

Perfect control of energy deposited

The size of the beam is 20 µm

Advantages

Cutting without any contact, therefore without any wear of the tool

Very clear edges of cut

Precise contour

Very weak contribution in warmth

Possibility of having a "white" cutting i.e. without any trace of burnre

A very important quickness

Drilling
According to the material and thickness of the article, the laser can carry out the holes of 0, 07 mms in diameter with a precision of order about 30 µm. Laser drilling, being characterized by its rapidity and its quality of execution, is present in varied industries as aeronautics, the debimetry, the clock industry... The laser process of drilling utilizes many mechanisms like fusion, vaporization, photo ablation, the ejection of material in fusion and the formation of absorbing plasma. The laser beam is a tool particularly indicated for the drilling of holes of very week diameters (0, 01 to 1, 5 mm). The removal of material is carried out especially by evaporation and projection of particles of material.