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The difference between laser cutting machine and comparison

by:Transon     2020-10-29
Laser cutting is using high power density of laser beam scanning the material surface, heat the material in a very short time to a few thousand to tens of thousands of degrees Celsius, cause the material to melt or gasification, with a high pressure gas will melt or gasification material blown away from the kerf width, achieve the goal of cutting materials. Because of the less heat, the volume of cooler can be reduced.
plasma cutting machine, laser cutting machine is widely used in automobiles, motorcycles, pressure vessels, chemical machinery, nuclear industry, general machinery, engineering machinery, steel structure and so on walks.
laser cutting machine, on the other hand, fiber laser solid diode is used to pump the molecules in a double cladding ytterbium doped fiber, the light of the stimulated shot several times through the fiber core, and then form the laser transmission through optical fiber to focusing on cutting head of output.
CNC plasma cutting machine is a new type of hot cutting equipment, its working principle is the use of high temperature plasma arc quantity of heat to make the workpiece incision of the metal local melting, and the plasma momentum ruled out a molten metal to form a kind of processing method of incision. Laser cutting, because is not visible beam instead of the traditional mechanical cutter, laser cutting head and mechanical department without contact, will not cause scratch on the surface of a work in work; Laser cutting speed, incision smooth level off, generally no subsequent processing; Cutting heat affected zone is small, plate deformation is small, narrow kerf width, 0. 1毫米~ 0。 3毫米) ; No mechanical stress, with no shear burr; High machining precision, good repeatability, does not damage the material surface; Numerical control programming, can be processing any plan, laser cutting machine to wide the whole plate cutting, don't need to open mold, economic time.
。 This means that in the process of cooling consumes more energy, further reducing the energy efficiency.

development of plasma cutting, can be used in the working gas for plasma arc cutting properties and cutting quality, speed has significant effect. And for 2 kw or 3 kw power optical fiber laser light source only need 4 kw or 6 kwco2 laser light source for 50% of the energy consumption can achieve the same function, and faster, lower energy consumption, less the effects on the environment. CO2 laser light source needs a lot of energy to excite the nitrogen with CO2 molecules ( The laser gas) A collision occurs, they emit photons, the ultimate form of a laser beam can cut through metal. Because all molecular collisions have occurred within the fiber, there is no need for laser gas, so the energy greatly reduce - — About a third of the CO2 laser.
title hub is the laser light source.
in terms of cutting precision, and can achieve less than 1 mm, plasma laser can achieve zero. Less than 2 mm; In the capital on plasma cutting machine is much cheaper than laser cutting machine, plasma cutting on the machining precision compared with the laser cutting is a rough machining, a fine processing. In a word, in the case of achieve the same function, fiber laser's overall energy consumption to 70% lower than that of CO2 laser. Molecular flow in a cavity on the release out light also release the heat at the same time, this needs a cooling system to cool the laser gas. Commonly used plasma arc work with argon gas, hydrogen, nitrogen, oxygen, air and water vapour and some mixed gas. However, the fiber laser in the newly rising as a share of sales. Compared with CO2 laser, fiber laser is obvious: simplicity by fiber laser machine covers an area of small, laser light sources and cooling system volume is smaller; No laser gas pipeline, also do not need to set-up the lens.

since the laser technology were introduced to cut sheet metal, CO2 laser in the market.
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