Hanma Laser senior fiber laser cutting machine engineer talks about the causes and solutions of burrs

August 4, 2021 76 comments ABOUT MACHINE

During the working process of fiber laser cutting machine, occasionally there will be the occurrence of burrs on the workpiece, which will affect the quality of the workpiece. The senior experienced Hanma Laser engineers tells you the causes and solutions of the burrs.

There is a problem with the laser head spot, and the spot energy is not uniform. The solution is to adjust the collimator or focus mirror to make the spot round and the energy evenly distributed to form a good cutting effect.

1. There is a problem with the laser head spot, and the spot energy is not evenly focused. The solution is to adjust the collimator or focus lens to make the spot round and the energy evenly distributed to form a good cutting effect.

2. The focus of the laser beam is wrong, and the upper and lower positions are deviated. In this case, the laser head is adjusted according to the offset position to make the focus position suitable and achieve good cutting quality.

3. The laser cutter has insufficient output power, resulting in burrs. The handling of this situation is a little complicated. First, check that the laser head mirrors whether dirty or not (two sets of mirrors), or that the lens is damaged (small cracks). Problems with the lens may affect the transmission of laser power. The second is to set the cutting parameters reasonably, such as the output power. During the working process of the laser cutting machine, the output power of the laser should be adjusted according to the processing material and thickness to fully exert the performance of the laser cutting equipment.

4. The processing speed is unreasonable. The acceleration performance of the laser cutting machine is very important. Sometimes we want to make the cutting speed high in order to pursue the processing efficiency, or cut it very slowly in order to pursue the quality. If it is too fast or too slow, it may produce burrs. The solution is to choose the processing speed reasonably, or according to the cutting parameters provided by Hanma laser, cut according to the parameters to solve the burr phenomenon.

5. The auxiliary gas of the fiber laser cutting machine is not pure enough, or the amount of gas is too small, and burrs are formed.

Let us first get acquaintance with the auxiliary gas. The auxiliary gas is blowing off the slag on the surface of the workpiece in the case of air isolation, forming a good cutting, if the gas is not pure or the amount of gas is insufficient, and the slag is not inspected in time, there will cause burrs, if this problem cccurd, improve the gas purity (replace the gas supplier), or try to increase the gas flow when cutting.

Above reasons and solutions of the cause of burrs, with the equipment + gas + parameters, adjusted to the best, will be able to cut out the burr-free workpiece, only when we mastered the performance of the laser cutting machine, familiar with the various cutting parameters provided by the manufacturer, can we maximize the economic benefits.

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