Causes Of Burrs in Laser Cutting Machines

Burrs are one of the common phenomena in laser cutting machining, and they are also two major problems that have not been solved so far in the theoretical research of metal cutting, "the generation and control of burrs". Burrs directly affect the dimensional accuracy and shape and position accuracy of the workpiece to be processed. and surface roughness. Today I will talk about the common causes and solutions of burrs in the laser cutting process.

Reason 1: There is a deviation in the upper and lower positions of the laser beam focus generated by the laser cutting machine, resulting in that the energy is not precisely concentrated on the workpiece, and the workpiece is not fully vaporized, which increases the amount of slag produced, which is not easy to blow off, so that burrs are more likely to occur.

Solution: Adjust the position of the focus of the laser beam, and adjust it to the best state according to the offset position it produces.

Reason 2: The output power of the laser cutting machine is not enough to effectively vaporize the metal, resulting in excessive slag and burrs.

Solution: Check whether the laser cutting machine is working normally. If it is not normal, it needs to be repaired and maintained in time; if it is normal, it is also necessary to check whether the output value is correct.

Reason 3: The cutting line speed of the laser cutting machine is too slow, which destroys the surface quality of the cutting surface and produces burrs.

Solution: adjust and increase the cutting line speed in time to make it reach the normal value.

Reason 4: The purity of the auxiliary gas of the laser cutting machine does not meet the required standard, which will also cause burrs on the workpiece.

Solution: Replace the auxiliary gas with a higher purity.

Reason 5: The working time of the laser cutting machine is too long, which makes the equipment in an unstable working state, which will also lead to the generation of burrs.

Solution: Turn off the laser cutting machine, restart it after a period of time, and make it fully rest.