Solution of Over Burning in Laser Metal Cutter Machine

Reason of over burning with laser metal cutter

The laser metal cutter machine process produces a lot of heat, and the it will cause burning edge phenomenon.

During of laser metal cutter machine, it will cool the outside of the hole, but the part of the small hole inside the single hole has less heat space, and the heat will cause over burning, slagging and so on.

In addition, in the thick plate cutting, the molten metal will accumulate on the material surface and the heat accumulation during the perforation will make the assist airflow disordered, and the heat input will be excessive, which will lead the burning of the edge.

Solution of over burning with laser metal cutter

So how to solve the problem of  laser metal cutter work burning and slagging?

Solution of over burning during laser metal cutter work of small hole in carbon steel: In the carbon steel cut with oxygen as the assist gas, the key to solve the problem is how to suppress the generation of oxidation reaction heat. The laser metal cutter will cut it with assist oxygen during perforation and lagged switch to auxiliary air or nitrogen.

The pulse cutting condition with low frequency and high peak output power. It can reduce the heat output and optimize the cutting condition. Set the condition as a single pulse laser beam. It can adjust the high peak output of high energy intensity and the low frequency condition. It can also reduce the accumulation of molten metal on the surface of the material. Which is during the perforation process and reduce the heat output.

The solution of laser metal cutter machine with aluminum alloy and stainless steel. In the processing of such materials, the assist gas used is nitrogen, which does not burn during metal cut. However, because of the high temperature of the material inside the pore, the phenomenon of slagging on the inside will be more frequent.

The solution to this problem will increase the pressure of the assist gas and to set the condition as the pulse condition of high peak output and low frequency.

When the machine work with assist, it will not over burn, but it is easy to appear slags at the bottom. It is necessary to set the conditions as high assist gas pressure. Then it will make the high peak output, low frequency pulse condition.