Fiber laser cutting machine cuts without burrs, wrinkles and with high precision. For many electromechanical manufacturing industries, since the modern CNC laser cutting system controlled by microcomputer program can easily cut workpieces of different shapes and sizes, it is often preferred over punching and die pressing processes; although the processing speed of laser cutting machine is slower than die punching, it has no mold consumption, no need to repair the mold, and saves time for mold replacement, thereby saving processing costs and reducing production costs, so it is more cost-effective overall.

In the metal processing industry, which occupies a heavy weight in the industrial manufacturing system, many metal materials, regardless of their hardness, can be cut without deformation. However, for high reflectivity materials such as gold, silver, copper and aluminum alloys, since they are also good heat conductors, laser cutting is difficult or even impossible.

During the cutting process of the fiber laser cutting machine, auxiliary gas suitable for the material to be cut is added. When cutting steel, oxygen is used as an auxiliary gas to produce an exothermic chemical reaction with the molten metal to oxidize the material, and at the same time help blow away the slag in the cut. Compressed air is used to cut plastics such as polypropylene, and inert gas is used to cut flammable materials such as cotton and paper. The auxiliary gas entering the nozzle can also cool the focusing lens to prevent smoke from entering the lens seat to contaminate the lens and cause the lens to overheat.

The connection between the cutting speed of the fiber laser cutting machine and the material cutting effect

The selection of the cutting speed of the CNC fiber laser cutting machine is actually very important when cutting. The optimal cutting speed range can be selected according to the equipment instructions or determined by experiments. Due to factors such as the thickness of the material, different materials, high and low melting points, thermal conductivity, and surface tension after melting, the cutting speed also changes accordingly.

Main performance:

1. A moderate increase in the cutting speed of the fiber laser cutting machine can improve the quality of the incision, that is, the incision is slightly narrowed, the incision surface is smoother, and deformation can be reduced at the same time.

2. The cutting speed of the fiber laser cutting machine is too fast, which makes the cutting line energy lower than the required value. The jet in the slit cannot quickly blow away the molten cutting melt immediately, forming a large amount of drag, accompanied by slag on the incision, and the surface quality of the incision is reduced.

3. When the cutting speed of the fiber laser cutting machine is too low, since the cutting point is the anode of the plasma arc, in order to maintain the stability of the arc itself, the anode spot or anode area must find a place to conduct current near the slit closest to the arc, and at the same time, it will transfer more heat to the radial direction of the jet, so that the incision becomes wider, and the molten materials on both sides of the incision gather and solidify at the bottom edge, forming slag that is not easy to clean, and the upper edge of the incision forms a rounded corner due to excessive heating and melting.

4. When the speed is extremely low, the arc may even go out due to the wide incision. It can be seen that good cutting quality is inseparable from cutting speed.