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Views: 18 Author: heyu Publish Time: 03-16-2021 Origin: Site
Frequently encountered problems of laser cutting machine in the cutting process
1. There is no response after the laser cutting machine is turned on
This kind of problem is generally caused by the output and input of the power supply, which can be solved by checking the power supply; the power supply failure is generally caused by the fuse burnt out or the problem of the power switch, which requires better and high-quality power fuse and Control switch.
2. After the machine runs for a period of time, the output light is very weak
When encountering this situation, we must first see whether the focal length has changed. If there is no change, check whether the focusing lens on the machine is contaminated; whether the light path system has accidentally deviated; the most important thing is to check whether the water circulation and water circulation are flowing. The smoothness can dissipate the heat of the laser cutting machine as much as possible, improve the energy conversion of the laser equipment, and finally achieve the focus of the light source.
3. Abnormal sparks often appear when cutting thin carbon steel
When laser cutting thin carbon steel, normally the flames are long and flat, with fewer split ends, but abnormal sparks will affect the smoothness and processing quality of the cut surface of the workpiece. At this time, when other parameters are normal, the loss of the laser head nozzle should be considered. If the problem exists, the nozzle should be replaced in time. If there is no replacement of a new nozzle, the cutting working gas pressure should be increased. If the thread at the connection between the nozzle and the laser cutting head is loose, stop laser cutting immediately, check the connection status of the laser cutting head, and reinstall the thread.
4. The processed round hole or straight line deformation
When this kind of fault occurs, we should first rule out whether the laser cutting control software is moving normally, for example: draw a straight line for processing, and observe whether the laser head is moving in a straight line during processing. This can basically eliminate the possibility of software problems. At the same time, this step can also find abnormal problems of looseness on the mechanical structure. After excluding the software and mechanical possibilities, we should think about whether the laser energy is too high, which will cause the non-processing area to be affected. Observe whether the cutting edge of the workpiece is melted, the normal processing edge should be smooth and flat. When this happens, we should appropriately lower the laser power or frequency parameters to solve the problem. Another less common thing is that defects such as the deformation of the focusing lens in the laser head may also cause this problem. It can be judged by observing whether the beam of the laser head is concentric or not.
5. The workpiece often has burrs
The workpiece often has burrs. We must give priority to the factors that cause the burrs during the cutting operation. We cannot blindly increase the cutting speed. Because the blindly increase the speed, it is very easy to cause the sheet to be cut in the actual cutting. The situation is most common when processing aluminum-zinc-clad sheets. At this time, other factors of the machine tool should be taken into consideration to solve the problem, such as whether to replace the nozzle or the unstable motion of the guide rail.
6. The laser is not completely cut
The reason for this kind of problem: check whether the selection of laser nozzle matches the thickness of the processed plate, replace the nozzle or process the plate; check whether the laser cutting line speed is too fast, and control the reduction of the line speed according to the actual plate condition.
For more information, please pay attention:
Karin
WhatsApp：0086 188 6592 7393
Email：karin@leapion.com
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