In the actual processing of the laser cutting machine, what problems do you often encounter?

Analysis of solutions to problems frequently encountered by laser cutting machines in actual cutting processing:

1. After turning on the machine, the laser cutting machine has no response.

Such problems occur It is generally caused by output and input power, which can be eliminated by checking the power supply; power failures are generally caused by fuse burnout or power switch problems, which requires high-quality power fuse and control switch.

2. After the machine has been running for a period of time, the output light is very weak

When this situation is encountered, the first thing to look at is whether it will change the focal length, if it does not change the focal length. Check whether the dimmer mirror on the machine is contaminated, whether the light path system will be accidentally deflected, the most important thing is to check whether the water circulation is smooth, whether the water circulation is smooth, so as to dissipate the heat of the laser cutting machine as much as possible, and improve the energy conversion of the laser equipment. Finally, the focus of the light source is achieved.

3. Abnormal sparks often appear when cutting carbon steel sheets

When laser cutting carbon steel sheets, fire bouquets are generally used, which is straight and straight. Without split ends, when abnormal sparks occur, the smoothness and processing quality of the cut surface of the workpiece will be affected. At this time, when other parameters are normal, the loss of the laser head nozzle should be considered, and if there is any problem, it should be replaced in time. No need to replace a new nozzle, you can increase the cutting operation air pressure. If the thread at the connection between the laser cutting head and the nozzle is loose, immediately stop laser cutting, check the connection status of the laser cutting head, and readjust the thread.

4. Processed round hole or straight line deformation

If this kind of fault occurs, firstly remove whether the laser cutting control software is moving normally, such as when drawing a straight line to observe the laser head processing Whether the moving position is a straight line, so that you can basically rule out possible software problems. This step can also find abnormal loosening in the mechanical structure. After excluding the possibility of software and machinery, we should consider whether the laser energy is too high, which causes the non-processing area to be affected. Observe whether the cutting edge is melted on the cutting part. The normal cutting edge should be flat and smooth. In this case, the laser power or frequency and other parameters should be appropriately adjusted to solve the problem. Another less common problem is that defects such as the deformation of the focusing lens in the laser head can also cause such problems, which can be judged by observing whether the beam from the laser head is concentrated on the concentricity.

5. Burrs often appear on the workpiece

The workpiece often has burrs. We must give priority to the factors that cause the burrs during the cutting operation. Do not blindly increase the cutting speed because If the cutting speed is increased, it is easy for the slices to fail to be cut in the actual cutting process. This situation is particularly prominent in the cutting of aluminum-zinc plates. At this time, other factors of the machine tool should be considered comprehensively, such as whether the nozzle needs to be replaced, whether the guide is unstable, etc.

6. The laser cannot be completely shredded

The reason for this problem: check whether the choice of laser nozzle matches the thickness of the processing board, replace the laser nozzle or processing board; check the laser cutting line Whether the speed is too fast, you need to control the deceleration speed according to the actual board situation.

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