Why should we need auxiliary gas when we using fiber laser cutting machine cutting metal materials ?

  1. First, the auxiliary gas will start chemical reaction with the metal material, which increases the working capacity.
  2. Second, blowing off the slag by air and clean the cutting seam.
  3. Third, the gas will cool the area around cutting seam, which can avoid shape change of the material.
  4. Last but most important, to protect the Focus Lens from combustion products caused by high temperature of laser beam.

Normally, O2 ( Oxygen) , N (Nitrogen) and Air will be used as auxiliary gas for fiber laser cutting.