Laser Marking Machine

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Principle is recognized in two ways:


"Hot work" has a high energy density laser beam (which is a concentration of energy flow), sunlight on the surface of the material to be processed, surface absorbs laser energy, thermal excitation process in the exposure areas, so that the surface (or coating) temperature rise, the normal evaporation, melting, Ablation, and so on.


"Cold working" have very high energy (UV) photons can break materials (especially organic material) or chemical bonds within the surrounding media, to non-thermal process of the material damage. This cold processing in laser marking processing have special meaning, because it is not a thermal ablation, but do not produce "thermal damage" side effects ", cold Peel break chemical bonds, so the processed surface layer and the surrounding area is not heated or heat distortion and other effects. For example, the excimer laser is used in the electronics industry in chemical film deposited on a substrate material, on a semiconductor substrate out of the narrow slots.


Comparison of different methods of marking


Compared with the inkjet marking, laser marking engraving advantages wide application range, a variety of materials (metals, glass, ceramics, plastics, leather, etc) can put a permanent high quality mark. No force on the workpiece surface without mechanical deformation, corrosion on the surface does not have.


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