Common problems and solutions for 10+kw high power laser cutter cutting thick plates

25mm Bright surface cutting

30mm Bright surface cutting

40mm Frosted surface cutting

The nozzle is hot when cutting

①Increase nozzle size;

②The lens is dirty, clean the lens;

③Reduce the positive focus of cutting.

Rough cutting surface

①Raise the positive focus of cutting;

②Reduce nozzle size;

③Reduce cutting air pressure;

④Increase cutting speed.

Hang slag

①Inappropriate cutting speed;

②Increase cutting air pressure;

③Inappropriate cutting focus.

Inconsistent cutting surface

①The nozzle outlet is not round;

②The laser is not in the center of the nozzle.

6mm：No hang slag

20mm：Point of slag

Cut surface stratification

①Reduce the cutting speed;

②Increase the cutting air pressure;

③Increase the nozzle size;

④The cutting focus is inappropriate.

Hang slag

①Inappropriate cutting speed;

②Increase the cutting air pressure;

③Reduce the cutting negative focus.

Cutting efficiency is slow

①The lens is dirty;

②Increase the cutting air pressure.

40mm：

A small amount of hang slag

Cut surface stratification

①Reduce frequency

②Raise the positive focus;

③Increase the cutting air pressure.

Yellow cut surface

①Reduce the duty cycle;

②Raise the positive focus;

③Increase the cutting air pressure.

Testing time:

5-10min

Auxiliary gas:

Nitrogen

Testing method:

①Adjust the stainless steel cutting parameters to ensure that the cutting surface is free of slag and no delamination;

②Continuously cut for 5-10 minutes at full power to check whether the cutting surface is consistent;

③If there are problems such as gradual increase of dross, blue light after cutting for a period of time, and the sheet cannot be cut, it means that the cutting focus is shifted. It is necessary to check the cutting head lens (the lens is dirty/poor lens quality has thermal lens problem) and the focus position.