In metal cutting, laser cutting and plasma cutting are widely used in automobiles, ships, pressure vessels, engineering machinery, petroleum and other industries. So when it comes to the actual purchase of CNC metal cutting machines, how should we choose?

High precision cutting methods include laser cutting and plasma cutting.

1. The working principle of plasma cutting is to take compressed air as the working gas, high temperature and high speed plasma arc as the heat source, locally melt the metal to be cut, and at the same time blow the melted metal away with high speed air flow to form a narrow cutting seam. The plasma cutting machine can be used for cutting various metal materials such as stainless steel, aluminum, copper, cast iron, carbon steel, etc. It not only has fast cutting speed, narrow cutting seam, flat cut, small heat affected zone, low workpiece deformation, simple operation, but also has significant energy-saving effect.

It is applicable to the manufacturing, installation and maintenance of various machinery and metal structures, as well as cutting, drilling, patching and beveling of medium and thin plates.

2. Laser cutting is to use a high power density laser beam to scan the material surface, heat the material to thousands to tens of thousands of degrees Celsius in a very short time, melt or vaporize the material, and then use high-pressure gas to blow the melted or vaporized material away from the cutting seam, so as to achieve the purpose of cutting materials.

As the invisible beam replaces the traditional mechanical knife, the mechanical part of the laser knife head has no contact with the work, and will not scratch the working surface during the work; The laser cutting speed is fast, the incision is smooth and flat, and there is generally no need for subsequent processing; The cutting heat affected zone is small, the plate deformation is small, and the cutting seam is narrow; The notch is free of mechanical stress and shearing burr; High machining accuracy, good repeatability, and no damage to the material surface; NC programming, can process any plan, can cut the whole board with large format, no need to open a mold, economical and time-saving.