When cutting with fiber laser cutting machine, different cutting gas is selected according to the material of the cutting plate. The selection of gas and pressure has a great impact on the quality of fiber laser cutting machine.

The impact of cutting gas and pressure on cutting quality

1) Cutting gas helps to dissipate heat and assist combustion, blows off the molten stains, and thus obtains a better quality cutting section.

2) When the pressure of cutting gas is insufficient, the cutting quality will be affected as follows: molten stains are generated during cutting, and the cutting speed cannot meet the requirements, affecting production efficiency.

3) When the pressure of cutting gas is too high, the impact on cutting quality: the cutting surface is rougher and the cutting seam is wider; at the same time, it will cause the cut section to partially melt, and a good cutting section cannot be formed.

The impact of cutting gas pressure on perforation

1) When the gas pressure of fiber laser cutting machine is too low, the laser is not easy to penetrate the cutting plate, the punching time increases, and the productivity is low.

2) When the gas pressure is too high, the penetration point is melted, forming a larger melting point, which affects the cutting quality.

3) When laser drilling, generally a higher gas pressure is used for drilling thin plates, while a specific drilling method is used for drilling thick plates to eliminate the adverse factors of low pressure on the protection of the lens.

4) When the fiber laser cutting machine cuts ordinary carbon steel, the thicker the material, the lower the pressure of the cutting gas. When cutting stainless steel, the cutting gas pressure increases with the thickness of the material. In short, the choice of cutting gas and pressure during laser cutting must be adjusted according to the actual situation during cutting, and different cutting parameters must be selected according to the specific situation in specific applications.