How should the parameters of fiber laser cutting machine be adjusted?

For laser cutting beginners, often encounter the cutting quality is not ideal, in the face of many parameters and do not know how to adjust. The following telephoto laser for you under the simple explanation of the parameter adjustment

First of all, cutting quality parameters are: cutting height, cutting nozzle type, focus position, cutting power, cutting frequency, cutting duty ratio, cutting pressure and cutting speed. The hardware conditions are: Protective Lens, gas purity, plate quality, focusing Lens and collimating Lens, etc. .

When the fiber laser cutting quality is poor, it is recommended that the first general inspection. General check the main content and order is:

1, cutting height adjustment is recommended in the range of 0.8 ~ 1.2 mm. If the actual cutting height is not accurate, calibration is required.

2. Check the type and size of the cutting brass nozzle for errors. If used correctly, check whether the copper nozzle is broken.

3, Optical Center detection suggested the use of diameter of 1.0 cutting copper nozzle. The optical center should be focused between-1 and 1. The spots of light are small and easy to see.

4. Protective Lenses check to see if the lenses are clean, dry, oil free, and residue free. Sometimes because of the weather and climate reasons, the air is too cold and other reasons cause protective glasses fog.

5.Focus check to see if the focus is set correctly. If the cutting head is auto-focusing, be sure to check the focus with the APP.

The above five checks are correct, and then according to the cutting phenomenon of fiber laser cutting machine to modify the parameters.

For example, there are many types of stainless steel slags. If only the corner DROSS can be considered corner roundness, parameters can reduce the focus, increase air pressure and so on. If the whole hanging slag, need to reduce the focus, increase air pressure, but focus too low or air pressure too low will lead to cross-section stratification and surface roughness. If the whole hanging granulated soft slag, can appropriately increase the cutting speed or reduce the cutting power. Fiber laser cutting machine cutting stainless steel may also encounter cutting near side hanging slag phenomenon, you can check whether the gas supply insufficient gas flow can not keep up.

Fiber laser cutting machine cutting carbon steel will generally encounter: Thin Plate section is not bright enough, thick plate section rough and so on. Generally speaking, the brightness of 1000W laser cutting carbon steel is not more than 4mm, 2000W is 6mm, 3000W is 8mm. The part to be cut bright must first be a good board surface without rust, oxidation paint, no skin, followed by oxygen purity of at least 99.5% above, in the cutting on the need for attention: Using a small cutting nozzle double layer 1.0 or 1.2, cutting speed needs to be faster than 2m/min, cutting air pressure should not be too large.

If you want to optical fiber laser cutting thick plate part quality is good, first to ensure that the plate and gas purity is followed by the choice of cutting mouth, the larger the aperture cross-section quality will be better, but at the same time cross-section taper will be greater.