The mentioned examples for material thickness and cutting speed are approximate values only and, therefore, can vary in praxis. Additionally, all the mentioned materials can be engraved or marked with a laser. The, thereby, used speed is depending on the penetration depth.
Through its thin cutting zone laser cutting is a high precision cutting technology. The thermal influence is limited to a very small area.
During cutting the material melts and / or vaporises. This requires, therefore, a suction system and suitable filter systems depending on the material. Several types of material produce highly toxic gases. Therefore it is not recommended to cut those materials with a laser, even if it is technically possible. In such cases we recommend to use our CAMTEC Water-Jet Systems.
The working surface is a grid.
For certain materials it may be necessary to blow gas into the cutting gap. In general it is appropriate to protect the lens system near the cutting jet from cutting fumes (blocked air). An additional gas can improve the cut result and even can prevent inflammation of the material. With some applications it is expedient to control the laser power according to the machine speed along the cutting contour. This guarantees a high cutting edge quality.
Generally, it can be said, that a laser beam source with 40 or 100 W is most suitable for cutting procedures on cardboard, paper, Plexiglas, textiles and similar materials. Laser with 600 W, 1200 W and more are used for cutting of ceramics, glass, metals, steel or wood. Special non-ferrous metals with good conductivity such as aluminium and copper are rather difficult to cut with laser. In such cases our CAMTEC Water-Jet Systems come into operation.