The most common laser cutting machines are CO2 laser cutting machine and fiber laser cutting machine.
CO2 laser cutting machine, carbon dioxide, nitrogen and helium gas in accordance with the proportion, with thousands of times atmospheric pressure by a pair of positive and negative electrode, resulting in a laser, reuse cavity, laser beam are available, and derived by flying light path transmission to cutting head, the focus lens laser will focus on the machined part, using single laser radiation and high temperature melting, evaporation, ionization materials, combined with auxiliary cutting gas blows away the melting and vaporization, slotted ionized materials, to realize the cutting processing.
Optical fiber laser cutting machine: it is to excite a large number of semiconductor tubes in a concentrated way and then couple some laser beams generated from them and transmit them to the cutting head through optical fiber.
Many users think that CO2 laser cutting machine can be purchased back, connected to the electricity can be used, this understanding is completely wrong.The equipment also requires compressed air, cooling water, voltage stabilizing power supply, pressure reducing valve, three laser generating gases and two auxiliary cutting gases, as well as supporting facilities such as constant temperature room. In the case of dewar bottle, a reduced pressure vaporization device and a filter device are also required.
1) Laser generator: output power, laser mode, laser polarization, beam parallelism, laser straightness;Only the output power can be properly adjusted within the rated range
(2) Cutting head: Appropriate cutting lens, clean cutting lens, accurate focus position, nozzle type, nozzle size, whether the beam is in the center of the nozzle.
(3) Programming: Reliable cutting path and pre-cutting.The setting path of cutting program should be as simple as possible, and pay attention to setting microconnection and other functions;It is best to do a pre-cut to make sure it is correct before cutting
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