Plasma cutting and laser cutting advantages and disadvantages
CNC plasma cutting machine is a new type of thermal cutting equipment, it works by using the heat of high-temperature plasma arc to locally melt the metal at the cut of the work piece, and by the momentum of high-speed plasma to eliminate the molten metal to form a processing method of the cut.
1. Plasma cutting development to the present, the work gas can be used on the cutting characteristics of plasma arcs, as well as cutting quality, speed have a clear impact. Commonly used plasma arc working gases are argon, hydrogen, nitrogen, oxygen, air, water vapor, and certain mixtures.
Plasma cutting machines are widely used in automobiles, locomotives, pressure vessels, chemical machinery, nuclear industry, general machinery, construction machinery, steel structure and other industries!
2. laser cutting is the use of high-power density laser beam scanning the surface of the material, in a very short period of time to heat the material to thousands to tens of thousands of degrees, so that the material melting or gasification, and then with high-pressure gas will melt or gasification material blown away from the cutting, to achieve the purpose of cutting material. Laser cutting, because it is the use of invisible beams instead of traditional mechanical knife, the mechanical part of the laser head and work without contact, in the work will not cause scratches on the work surface; Laser cutting speed, smooth and flat incut, generally no follow-up processing; The cutting heat affects the area is small, the plate deformation is small, the cut seam is narrow (0.1mm to 0.3mm); The incision has no mechanical stress and no shear burrs; High processing accuracy, good repeatability, do not damage the surface of the material; CNC programming, can process any floor plan, can be a large plate cutting, no need to open mold, economic time-saving.
In summary: in terms of cutting accuracy, plasma can reach less than 1mm, laser can reach within 0.2mm; In terms of cost plasma cutting machine compared to laser cutting machine is much cheaper, plasma cutting in processing accuracy relative to laser cutting one is roughing, one is fine processing!
