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Can laser cutting machine cut board?

Views: 11     Author: heyu     Publish Time: 05-15-2020      Origin: Leapion fiber laser cutting machine

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  Can laser cutting machine cut board? At present, the cutting of wood is mostly in the form of traditional saw blade, but it will produce a lot of pollution such as sawdust and noise. Using laser to cut wood can not only reduce the noise, but also reduce the generation of sawdust particles and reduce the harm to human body. The section quality of laser cutting wood is also better than that of traditional cutting method. The rough, torn or fluffy wood grain on the cutting surface is not obvious, but covered with a thin carbonized layer.

  Laser cutting machine manufacturer

  There are two basic ways of laser cutting wood: instant gasification and combustion. The way of laser cutting wood depends on the power density absorbed by wood. Instantaneous gasification is an ideal way of wood cutting. Wood is gasified to form a cutting seam under the irradiation of focused laser beam. The features of gasification cutting are: fast cutting speed, less heat transfer to the uncut substrate, no carbonization on the profile, only slight darkening and glaze. The cutting of combustion mode is mainly due to the low power density of the beam, which is characterized by slow cutting speed, wider cutting seam, large cutting thickness, accompanied by smoke and burning smell. The energy consumption per unit material cut by combustion is higher than that by gasification, and there is carbonization phenomenon in cutting edge. However, in the actual process of cutting wood, gasification is basically accompanied by combustion, which is because although gasification mode has the advantages of high efficiency, it needs high power density to achieve. However, in the actual laser irradiation process, due to the influence of laser output power and beam mode, there are always some areas of the laser beam power density lower than the power density required for gasification on the surface of the material, so a small amount of combustion occurs. In addition, the laser cutting wood also needs a coaxial auxiliary air flow with the beam, generally low-pressure inert gas or air.

  What kind of laser can cut wood

  Generally, CO2 laser is used to cut wood, and its wavelength is 10.6 μ M. However, the photoelectric conversion rate of CO2 laser is low (only 5% - 10%), the energy consumption is relatively large; the laser needs frequent air exchange, and the maintenance cost is high; the external optical path is complex, so it is difficult to install, debug and maintain. Therefore, CO2 laser is limited in practical industrial production and application.

  At present, it is very common for fiber laser (wavelength is 1 μ m) to cut metal plate in the market. Can this fiber laser be used to cut wood? If it is 1 μ m wavelength erbium-doped fiber laser to cut wood, the answer is: more difficult. This is because the laser absorption of wood to 1 μ m wavelength is relatively low and it is difficult to form a slit


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