Laser cutting machine equipment as a new type of tool is now more and more mature to use in various industries? Including laser cutting machine, laser engraving machine, laser marking machine, laser welding machine and so on. So how does laser cutting work? How does laser cutting differ?
First, the energy of the laser is concentrated in the form of light into a high-density beam. The beam is delivered to the work surface, generates enough heat, melts the material, and removes the molten metal directly from the high-pressure gas coaxial to the beam. This shows that the laser cutting process is essentially different from the machining of machine tools.
It uses the laser beam emitted from the laser generator? Through the optical system? Focusing on the laser beam irradiation conditions of high power density? Laser heat is absorbed by the workpiece material? The temperature of the workpiece rises sharply? After reaching the boiling point, the material begins to vaporize and form holes • The flow of air with high pressure? As the beam moves relative to the workpiece, the material eventually forms a slit. The process parameters (cutting speed, laser power, gas pressure, etc.) and trajectory during the slitting are all controlled by the numerical control system. The slag at the kerf is blown by the auxiliary gas with a certain pressure.
In general, the quality of laser cutting can be measured by the following six criteria.
1. Cutting surface roughness Rz
2. Cutting slag size
3. Trimming perpendicularity and slope u
4 cutting edge corner size r
5. After the stripe drag n
6. Flatness F
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