There are many laser cutting machine users who are cutting more than 6 mm plates, it is very easy to have the phenomenon of hole explosion during drilling, resulting in the cutting sample being incomplete or the following head being unstable. What is the cause? Here are some points to analyze.
1. Reduce the oxygen pressure
Oxygen is combustion-supporting in the process of laser cutting. When the punching pressure is too high, the plate will break instantly, causing deflagration. Reduce the blowing pressure, which will slowly break through the plate during drilling and will not cause deflagration.
2. Use air cutting
Air cutting by laser cutting machine will improve the hole burst phenomenon, but the cutting speed will be reduced. Of course, you can also use nitrogen and other inert gases, but the gas cost will be higher.
3. Adjust the focus
It is complicated to adjust the focal length to solve the problem of hole burst, so we need to debug step by step in cutting the sample to make the focal length focus on the surface of the cutting plate. If thick plates are cut, the beauty of cutting will be reduced.
4. Upgrade equipment
The gas and gas pressure of the laser cutting machine can be adjusted separately for drilling and cutting, which can effectively reduce the probability of hole explosion.