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Views: 34 Author: Site Editor Publish Time: 11-06-2021 Origin: Site
Laser cutting processing uses invisible light beams instead of traditional mechanical knives. It has the characteristics of high precision, fast cutting, not limited to cutting patterns, automatic typesetting, saving materials, smooth cuts, and low processing costs. The laser cutting machine is the most advanced technology to replace traditional metal cutting equipment. Do you know how the laser cutting machine malfunctions? Leapion laser share is as follows.
Laser is another major invention of mankind since the 20th century, following nuclear energy, computers, and semiconductors. It is called the "fastest knife", "most accurate ruler", and "brightest light".
The laser is a highly concentrated single-wavelength beam. Under each wavelength of light, various materials absorb, reflect, and transmit the light in different amounts.
For example: in the case of a typical CO2 laser, the wavelength is in the infrared part of the spectrum, so it is invisible to the human eye.
When the beam passes through the beam path of the machine from the laser resonator that produces the beam, the diameter of the beam is only about 3/4 inch. It may be reflected in different directions by many mirrors or "beam benders" before finally focusing on the board. The focused laser beam passes through the hole of the nozzle before hitting the plate. Compressed gas, such as oxygen or nitrogen, flows through the nozzle hole.
For example: when cutting mild steel, the heat of the laser beam is enough to start a typical "oxy-fuel" combustion process, and the laser cutting gas will be pure oxygen, just like an oxy-fuel cutting torch. When cutting stainless steel or aluminum, the laser beam simply melts the material, and then uses high-pressure nitrogen to blow the molten metal out of the cut.
Generally, assist gas is used to help push molten material out of the cutting area.
The capacitive height control system maintains a very precise distance between the end of the nozzle and the plate being cut. This distance is important because it determines the position of the focal point relative to the surface of the board. The quality of the cut can be affected by raising or lowering the focus from directly above the surface of the sheet, or directly below the surface.
The laser light emitted from the laser is focused into a high-power density laser beam through the optical path system. The laser beam irradiates the surface of the workpiece to make the workpiece reach the melting point or boiling point, and the high-pressure gas coaxial with the beam blows away the molten or vaporized metal.
With the movement of the relative position of the beam and the workpiece, the material will finally form a slit, so as to achieve the purpose of cutting.
When performing laser cutting, it is best to adjust the angle of the laser so that the smoke generated during the cutting process will not collect on the laser optics like soot.
In addition, when cutting (or welding) highly reflective surfaces, it is important to prevent the laser beam from reflecting off the surface and returning to the laser optics, otherwise they will be damaged.
If you want to know other information and questions about laser cutting machine, please consult Leapion Laser, Leapion Laser 7×24 hours online service.
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