Metal Laser Cutting Machine Focal Length - China

When the fiber laser cutting machine is engaged in the cutting operation, there will be some differences in the cutting quality with different focus positions.

Therefore, in order to further improve the cutting quality of the laser cutting machine, it is very important to adjust the focus position of the 20mm metal laser cutting machine.

The adjustment of the focal position of the fiber laser cutting machines to optimize the cutting quality is determined from the situation where the cutting focus is on the cutting material: Three kinds of 20mm metal laser cutting machine focal length

When the focus of the fiber laser cutting machine is in the best position, the slit is minimum and the efficiency is highest to obtain the best cutting results.

The following are the focal lengths of three fiber laser cutting machines.

Negative focal length

Negative focal length (the cutting focus is on the cutting material) is mainly used when cutting thick metal plates.

Negative focal length cutting thick plate needs large cutting amplitude, lead to the nozzle to transport insufficient oxygen and make the cutting temperature drop, the cutting surface is relatively rough, not suitable for high precision precision cutting.

The negative focal length

Internal negative focal length (the cutting focus is located inside the cutting material) is usually applied to fiber laser cutting machines in cutting materials such as aluminum, aluminum alloy and stainless steel.

According to the focus principle of cutting surface, the relative cutting point on the workpiece surface is large, and in this mode, the use of 20mm metal laser cutting machine to cut the airflow is large, the temperature is high, the cutting perforation time is slightly longer.

So this kind of cutting is mainly used in cutting aluminum or stainless steel and other materials with high hardness 0 the focal length

0 focal length (the cutting focus is on the surface of the cutting material) is usually used when cutting SS41, SPH, SPC and other materials.

0 focal length cutting focus is close to the workpiece surface, due to the cutting surface of the upper and lower smoothness is not the same, so when cutting the upper surface of the cutting is relatively smooth, and the lower surface is relatively rough.

This way of cutting focus positioning needs to be based on the actual situation of the upper and lower surface process requirements.

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