High-power laser cutting machine with a large cutting area, cutting speed, can cut thicker plates and other irreplaceable advantages, once listed on the market has been widely recognized. However, due to the high power laser cutting technology is still in the primary stage of popularization, although in the delivery of equipment and training, laser cutting machine manufacturers have been systematic training of enterprise operators, but some operators are still on the high power laser cutting skills mastery is not very skilled.

Therefore, according to the summary of the technical engineers and the customer's common problems, I summarize the following solutions to the problems of high-power laser cutting process.

How to improve the laser cutting three major problems

　　Found that the cutting effect is poor, you should first check whether the following situations occur:

　　1, all lenses in the laser head are not contaminated, are clean;.

　　2, the water temperature of the water tank is normal, no condensation phenomenon of the laser;

　　3, cutting gas purity is excellent, the gas path is smooth, no gas leakage.

　　Problem 1: Cutting with stripes

　　Problem factors:

　　1, the nozzle selection is not right, the nozzle is too large;

　　2, the air pressure is not set right, set the air pressure is too large, resulting in overcooking with stripes.

　　3, the cutting speed is not right, the cutting speed is too slow or too fast will also cause full overcooking.

　　Solution:

　　1, replace the nozzle, replace the nozzle with a small diameter, such as 16mm carbon steel bright cutting, you can choose high-speed nozzle D1.4; 20mm carbon steel bright can choose high-speed nozzle D1.6;.

　　2, reduce the cutting air pressure, improve the quality of end face cutting.

　　3, adjust the cutting speed, power and cutting speed matching appropriate.

　　Problem two: tumor slag at the bottom

　　Problem factors:

　　1, the nozzle selection is too small, the cutting focus does not match.

　　2, the air pressure is too small or too large, cutting speed is too fast.

　　3, poor plate material, plate quality is not good, small nozzle is difficult to remove the tumor slag.

　　Solution:

　　1, replace the large-diameter nozzle, adjust the positive focus focal point to the right position;;

　　2, increase or decrease air pressure until the air flow is appropriate.

　　3、Choose a good plate.

　　Problem 3: burrs on the bottom

　　Problem factors:

　　1, the nozzle caliber is small, can not meet the processing requirements.

　　2、Negative defocus mismatch, should increase the negative defocus, modulation of the appropriate position;.

　　3, the air pressure is small, resulting in burrs at the bottom, can not fully cut.

　　Solution:

　　1, the choice of large diameter nozzle, you can increase the air flow;

　　2, increase the negative focus, so that the cutting section to the bottom position.

　　3, increase air pressure, can reduce the bottom burr.