When cutting with the fiber laser cutting machine, different cutting gases are selected according to the different materials of the cutting plate. The selection of gas and pressure has a great influence on the quality of fiber laser cutting machine.

Influence of cutting gas and pressure on cutting quality

1) Cutting gas helps to dissipate heat and support combustion, blow away molten stains, and thus obtain high-quality cutting section.

2) When the pressure of cutting gas is insufficient, the following effects will be caused to the cutting quality: molten stains will be produced during cutting, and the cutting speed cannot meet the requirements, affecting the production efficiency.

3) When the pressure of cutting gas is too high, the impact on cutting quality: the cutting surface is rough and the cutting seam is wide; At the same time, it will cause partial melting of the cutting section, which can not form a good cutting section.

Influence of cutting gas pressure on perforation

1) When the gas pressure is too low, the laser is not easy to penetrate the cutting plate, and the drilling time increases, resulting in low productivity.

2) When the gas pressure is too high, the penetration point will melt, forming a large melting point, which will affect the cutting quality.

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

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