How To Debug Fiber Laser Cutting Machine Parameters?

For fiber laser cutting machine beginners, encountering poor cutting quality will be difficult, facing many parameters do not know how to adjust. The following Remax laser laser cutting machine manufacturers will briefly introduce the problems encountered and solutions.

Parameters affecting cutting quality are: cutting height, cutting nozzle type, focusing position, cutting power, cutting frequency, cutting duty cycle, cutting air pressure and cutting speed. Hardware conditions are: protective lenses, gas purity, plate quality, converging and collimating mirrors.

When the cutting quality of fiber laser cutting is poor, it is recommended to carry out general inspection first. The main contents and order of the general inspection are: 

1. Cutting height (it is recommended that the actual cutting height is between 0.8~1.2mm). If the actual cutting height is not accurate, calibration is required.

2. Check that the type and size of the cutout is not used incorrectly. If correct, check that the cutout is not damaged and that the roundness is normal.

3. Optical center detection is recommended using a 1.0 diameter cutout. Optical center detection should have a focal point between -1 and 1. This makes the point of light small and easy to see.
   

4.  Protective Lenses Check that the protective lenses are clean and free of water, oil and slag. Sometimes the protective lenses fog up due to weather or cold air during layup.
   

5. Focus Check that the focus is set correctly. If the cutting head focuses automatically, be sure to use the phone APP to check if the focus is correct.
   

6. Modify the cutting parameters.
   

After the above five items are checked correctly, then modify the parameters according to the cutting phenomenon of the fiber laser cutting machine.

How to adjust the parameters according to this phenomenon, the following is a brief introduction to the state and solutions that stainless steel and carbon steel will encounter when cutting.

For example, there are many types of stainless steel hanging slag. If only the corners hang slag can consider the roundness of the corners, the parameters can reduce the focus, increase air pressure and so on.

If the whole hanging slag, need to reduce the focus, increase air pressure, increase the cutting mouth, but the focus is too low or air pressure is too low will lead to section delamination and surface roughness. If the whole hanging granular soft slag, you can appropriately increase the cutting speed or reduce the cutting power.

Fiber laser cutting machine cutting stainless steel may also be encountered: cutting near the end of the side of the hanging slag, you can check whether the gas supply is insufficient gas flow to keep up.

Fiber laser cutting machine cutting carbon steel will generally encounter: thin plate section is not bright enough, thick plate section rough and other issues.

Generally speaking, 1000W laser cutting carbon steel is not more than 4mm bright, 2000W for 6mm, 3000W for 8mm.

Want to cut the part of the bright first must be a good plate surface without rust, oxidized paint, no skin, followed by high oxygen purity of at least 99.5% or more, in the cutting need to pay attention to: with a small cutting nozzle double layer 1.0 or 1.2, the cutting speed has to be fast need to be more than 2m/min, the cutting air pressure should not be too large.

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