Fiber laser cutting machines have the characteristics of high cutting accuracy and fast cutting speed. They are suitable for cutting precision accessories and various metal profiles. So do you know how fiber laser cutting machines cut different metal materials?

1. Carbon steel

The auxiliary gas used by the laser cutting machine to cut carbon steel is oxygen, which is relatively easy and has a better cutting effect. Using oxygen as an auxiliary gas for cutting can greatly improve the cutting efficiency. The oxide film produced during the cutting process will also increase the beam spectrum absorption factor of the reflective material. The disadvantage is that the edge may be slightly oxidized when oxygen is used for processing. Users with strict requirements on the cutting surface can use nitrogen for high-pressure cutting.

2. Copper and brass

Like aluminum, copper and brass are highly reflective materials, which are difficult to cut. They need to be cut by a laser cutting machine with an anti-reflection device. Brass with a thickness of less than 1mm can be cut with nitrogen, and copper with a thickness of less than 2mm can be cut with oxygen.

3. Aluminum

Aluminum is a metal material with high reflectivity and thermal conductivity. The laser cutting machine can adapt to aluminum cutting by installing an anti-reflection device. The thickness of the cut aluminum varies depending on the power of the equipment. Generally speaking, the thickness of stainless steel and carbon steel cut by the same equipment is thicker than that of highly reflective materials such as aluminum. Aluminum is also suitable for nitrogen cutting, and the cutting surface is smooth and the effect is good.

4. Stainless steel

Fiber laser cutting machines generally use nitrogen to cut stainless steel metal sheets. There are no burrs on the edges, and they can be directly welded without post-processing. According to the characteristics of stainless steel materials, the fluidity of the liquid can be accelerated, so the cutting efficiency is high. If oxygen cutting is used, the cutting effect will be worse than nitrogen, resulting in blackened and rough end faces.

The above are the matters that need to be paid attention to when laser cutting machines cut different metal materials.