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  • How does a laser cutter work?

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Special lens or curved mirrors can be used to focus the laser beam and this process happens in the laser cutting head. The laser beam should be accurately concentrated so that the energy density and the form of the focus spot in that point are completely consistent and round and also centered in the nozzle. The density of heat in the spot that the large beam is focused down to a single point is extreme.

 Figure 3. workpiece and focusing position