How does a fiber optic laser cutter reduce burrs
Burr is one of the common phenomena in the laser cutting of fiber optic laser. In the laser cutting process, the irregular parts such as sharp corners and burrs sometimes appear on the surface transition of the workpiece.Burr directly affects the dimension precision, shape and position precision and surface roughness of the workpiece.
The main causes of burr in the sheet metal processing by optical fiber laser cutting machine are as follows:
When the optical fiber laser cutting machine is processing the workpiece, the high energy generated by laser beam shining on the workpiece surface makes the workpiece surface vaporize and evaporate quickly to achieve the purpose of cutting.There are two main reasons for burrs: first, when the workpiece surface is vaporized by auxiliary gas, the slag on the workpiece surface is blown off. If auxiliary gas is not used, the slag will form burrs attached to the cutting surface after cooling.The second is the equipment itself, parameter setting factors, and daily use skills.Therefore, after the customer newly buys the optical fiber laser cutting machine, must pass the professional training, then begins to use.
Fiber optic laser cutting machine cutting burr solutions:
1. Use auxiliary gas for cutting.
Gas purity is high, it is best not to use cylinder gas, because after two filling, the purity is not good, also waste gas.For example, in the case of laser cutting stainless steel, it is recommended to use nitrogen as an auxiliary gas. Nitrogen belongs to the flame retardant gas. In laser processing, nitrogen not only prevents the detonation point phenomenon of laser cutting, but also prevents the heated end face from being oxidized instantly and makes the end face of cutting smoother and brighter.The auxiliary gas should be adjusted to the pressure of 12-15 kg. The nitrogen under this pressure is not enough to completely prevent combustion, and it can also blow away waste and miscellaneous quickly to remove burrs.
2, find a professional operator debugging metal laser cutting machine parameters, until normal, you can successfully complete the optical fiber laser cutting machine cutting operation.
Some parameter setting factors of fiber laser cutting machine will also affect the appearance of slag, resulting in the burr of fiber laser cutting machine, so to adjust the cutting parameters to the best.Equipment + gas + parameters, adjusted to the best, cut out of the workpiece is no burr, so that the fiber laser cutting machine cutting become more quality.