Some Difficulties and Solutions of High Power laser cutting machine for metal Cutting Process
Table of Contents
High-power laser cutting machine for metal has incomparable advantages such as large cutting format, fast cutting speed, and can cut thicker plates. High-power laser cutting machine for metal has been unanimously recognized by the market. However, because high-power metal laser cutter machine technology is still in the initial stage of popularization, some operators are not very skilled in laser cutting machine metal cutting skills. The following is a brief talk about some difficulties and solutions in the cutting process of high-power laser cutting machine for metal:
Reasons why the effect of high-power metal laser cutter machine is not good
If the high-power metal laser cutter machine cutting effect is found to be poor, the following reasons should be checked first:
1. Whether all the lenses in the high-power laser cutting machine metal laser head are polluted again. All lenses should be spotless;
2. The water temperature of the high-power laser cutting machine for metal water tank is normal, and whether there is condensation on the laser. There should be no condensation in the water tank;
3. The cutting gas of high-power metal laser cutter machine needs to have excellent purity, smooth gas path and no gas leakage.
Problem 1: There are streaks on the cutting surface of high-power metal laser cutter machine
possible reason:
1. The nozzle selection is wrong, and the nozzle is too large;
2. The air pressure setting is incorrect, and the setting air pressure is too high, resulting in streaks after overheating;
3. The cutting speed is wrong, too slow or too fast will cause full overheating.
Solution:
1. Replace the nozzle, replace the nozzle with a small diameter, such as 16mm carbon steel bright surface cutting, you can choose high-speed nozzle D1.4; 20mm carbon steel bright surface can choose high-speed nozzle D1.6;
2. Reduce the cutting air pressure and improve the cutting quality of the end face;
3. Adjust the cutting speed, and the power and cutting speed match properly.
Problem 2: There is tumor residue at the bottom of the high-power laser cutting machine metal cutting sample
possible reason:
1. The nozzle selection is too small, and the cutting focus does not match;
2. The air pressure is too small or too large, and the cutting speed is too fast;
3. The material of the plate is poor, the quality of the plate is not good, and it is difficult to remove the tumor residue with a small nozzle.
Solution:
1. Replace the large-diameter nozzle and adjust the focus to a suitable position;
2. Increase or decrease the air pressure until the air flow is appropriate;
3. Choose a good board.
possible reason:
1. The nozzle diameter is too small to meet the processing requirements;
2. If the negative defocus does not match, you should increase the negative defocus and adjust the proper position
3. The air pressure is too small, resulting in burrs on the bottom, which cannot be fully cut.
Solution:
1. Choose a large-diameter nozzle to increase the air flow;
2. Increase the negative defocus to make the cutting section reach the bottom position;
3. Increasing the air pressure can reduce the bottom burrs.
