The reasons for the burrs of the plate compact high repetition rate nanosecond lasers cutting

Laser sheet metal cutting is already common. Due to its high work efficiency and high quality of finished product cutting, it has become the standard equipment of sheet metal processing stations. However, when some customers use the laser cutting machine, the workpieces are cut with many burrs. Many people think that it is a quality problem of the laser cutting machine, but this is not the case.

In the process of sheet metal processing, the gas purity and parameter settings of the laser cutting machine will affect the processing quality. If the equipment + gas + parameters are adjusted to the best, the cut workpiece will be free of burrs.

How do glitches occur?

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In fact, burrs are excessive residue particles on the surface of metal materials. When the laser cutting machine is processing the workpiece, the energy generated by the laser beam irradiating the surface of the workpiece vaporizes and evaporates the surface of the workpiece to achieve the purpose of cutting. But here is a device that we must pay attention to, which is gas.

The gas is to blow off the molten slag on the surface of the workpiece when the irradiated surface of the workpiece is vaporized. If no gas is used, after the molten slag is cooled, it will form burrs attached to the cutting surface. Therefore, the purity of the gas should be high. You can switch to a higher-quality gas supplier. The purity of the gas is very important. Do not use cylinder gas, because after two fillings, the purity is not good and the gas is wasted.

Another reason is the quality of the equipment itself, as well as the parameter setting factor. Therefore, after the customer purchases the laser cutting machine, it is necessary to have an experienced operator debug the equipment. Therefore, the cutting parameters should be adjusted as best as possible. The air pressure, flow, focal length and cutting speed must be adjusted many times. The parameters provided by the machine cannot be used to cut high-quality workpieces.

If a piece of material has burrs, it can be qualitatively defective. The more burrs, the lower the quality.

Generally speaking, when the laser cutting machine has burrs, it can be checked and solved from the following aspects:

1. The output power of the laser cutting machine is not enough.

Solution: Check whether the laser cutting machine is working properly. If it is abnormal, it needs to be repaired and maintained in time. If it is normal, check whether the output value is correct.

2. The up and down position of the focus of the beam is deviated.

Solution: Adjust the position of the focus and adjust it according to the offset position it produces.

3. The purity of the gas of the cutting machine is not enough.

Solution: Change the gas.