Plasma cutting machine is a new type of thermal cutting equipment. Its working principle is to use compressed air as working gas, high-temperature and high-speed plasma arc as 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 slit. Plasma cutting machine can be used for cutting stainless steel, aluminum, copper, cast iron, carbon steel and other metal materials. It not only has high cutting speed, narrow cutting seam, flat cut, small heat affected zone, low workpiece deformation, simple operation, but also has significant energy saving effect. The ion cutting machine is applicable to the manufacturing, installation and maintenance of various machinery and metal structures, as well as the cutting, drilling, patching and beveling of medium and thin plates. Plasma cutting is a processing method that uses the heat of high-temperature plasma arc to locally melt (and evaporate) the metal at the workpiece notch, and uses the momentum of high-speed plasma to remove the molten metal to form the notch. Plasma cutting machine is widely used in automobile, locomotive, pressure vessel, chemical machinery, nuclear industry, general machinery, engineering machinery, steel structure and other industries.
Laser cutting machine is to use 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 gasify the material, and then blow the melted or gasified material away from the cutting seam with high-pressure gas to achieve the purpose of cutting the material. In laser cutting, since the invisible beam is used to replace the traditional mechanical knife, the mechanical part of the laser knife head is not in contact with the work, and will not scratch the work surface during the work; Laser cutting speed is fast, the incision is smooth and flat, and generally no subsequent processing is required; The cutting heat affected zone is small, the plate deformation is small, and the cutting seam is narrow (0.1mm ~ 0.3mm); The notch is free of mechanical stress and shear burr; High processing accuracy, good repeatability, and no damage to the material surface; Numerical control programming, can process any plan, can cut the whole board with large format, no need to open the mold, economical and time-saving.
In terms of cutting accuracy, plasma energy can reach within 1mm and laser energy can reach within 0.2mm; In terms of cost, plasma cutting machine is much cheaper than laser cutting machine. In terms of processing accuracy, plasma cutting is rough processing and fine processing compared with laser cutting.
Detailed distinction between laser cutting machine and plasma cutting machine:
1. Compared with plasma cutting, laser cutting is much more precise, the heat affected zone is much smaller, and the cutting seam is much smaller;
2. If you want precision cutting, small cutting seam, small heat affected zone and small plate deformation, it is recommended to choose laser cutting machine;
3. Plasma cutting is to use compressed air as working gas, high-temperature and high-speed plasma arc as 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 cutting;
4. The heat affected zone of plasma cutting is relatively large and the cutting seam is relatively wide, which is not suitable for cutting thin plates, because the plates will be deformed due to heat;
5. Laser cutting machine is more expensive than plasma cutting machine.
