How can ability avoid fiber laser cutting machine burn edge

With the widespread use of fiber laser cutting machine, it is more and more familiar to customers, but we often encounter some problems in the operation process, such as laser cutting sheet metal parts burning problems, so how does this happen? Yes, let's follow the manufacturers of ultra-high power fiber laser cutting machines.

Fiber laser cutting machine will generate a lot of heat when laser cutting sheet metal. Usually, the heat generated by cutting will be transmitted along the slit to the sheet metal to be processed for cooling, but sometimes ultra-high power fiber laser cutting machine manufacturers in cutting holes, the outside of the hole can be cooled, but the hole inside the single hole has a small heat diffusion space, energy is too concentrated, resulting in over-burning, slagging and so on;

In addition, when cutting thick plates, the accumulation of molten metal on the surface of the material and the heat buildup from the perforation process can cause interference in the auxiliary air flow and excessive heat input, leading to overburning.

The Solution

A metal laser cutting machine in carbon steel cutting holes when overburning solution: in carbon steel cutting with oxygen as an auxiliary gas, the key to solve the problem is how to inhibit the generation of oxidation reaction heat. The manufacturer of ultra-high power fiber laser cutting machine uses auxiliary oxygen when perforating, and switches to auxiliary air or nitrogen for cutting, which has hysteresis. This method can work holes in 1/6 thick plates. The low frequency and peak output power pulse cutting conditions have the characteristics of reducing heat output, which is helpful to optimize the cutting conditions. By setting the conditions as monopulse laser beam, peak output of energy intensity and low frequency, the accumulation of molten metal on the material surface can be reduced and the heat output can be suppressed during the perforation process.

Two, metal laser cutting machine in aluminum alloy and stainless steel cutting solutions: in the processing of such materials, ultra-high power fiber laser cutting machine manufacturers use the auxiliary gas for nitrogen, cutting will not appear burning edge, but because of the inner hole edge material temperature is very high, the phenomenon of slag hanging inside will be more frequent. The solution is to increase the auxiliary gas pressure and set the conditions to peak output, low frequency pulse conditions. Auxiliary gas When using air, the same as when using nitrogen. No overburning, but prone to slag formation at the bottom. These conditions need to be set to high auxiliary gas pressure, peak output, and low frequency pulse conditions.