Fiber laser cutting is a hot cutting method which makes use of the focused high power density laser beam as the main heat source to illuminate the workpiece cause the irradiation materials rapidly melting evaporation and ablation or reach the ignition point.
Laser cutting working principle.
When cutting stainless steel or aluminum the laser beam simply melts the material and high pressure nitrogen is used to blow the molten metal out of the kerf.
When cutting mild steel the heat of the laser beam is enough to start a typical oxy fuel burning process and the laser cutting gas will be pure oxygen just like an oxy fuel torch.
A laser differs from other sources of light in that it emits light which is coherent.
Laser principles of working of a laser.
Yag and fiber lasers permit a controlled heat entry which is optimum for fine cutting.
The temperature of laser cutting exceed 11000 which would have made any material gasification therefore gasification also plays an important role in addition to the melting during laser cutting process.
This paper shows every parts of the fiber laser cutting machine how to operate the fiber laser marking machine how to maintain it etc.
Http www wissensfloater de arrangement physical requirements laser melt cutting laser flame cutting contours and bevel cuts punching of holes compari.
The laser optics and cnc computer numerical control are used to direct the material or the laser beam generated.
Laser cutting uses the laser beam as the heat source for hot cutting its working principle is similar to laser welding.
In lasers photons are interacted in three ways with the atoms.
Laser cutting works by directing the output of a high power laser most commonly through optics.