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Principle of laser direct carving parsing

by：Transon 2021-01-08

Laser engraving copper directly, have argued that it is not feasible in technology, but the laser machine can engrave zinc. Switzerland MDC company by plate-making process improvements, laser carved directly. First on TongGun plating a thin layer of nickel, and copper plating on the surface, then coated with a layer of zinc. This layer of zinc can absorb laser energy and evaporation, evaporation and the copper underneath, then generate the mesh point of ink. After carving, like other carving drum and finally a layer of hard chromium plating in the roller. About 500 w power also developed YAG laser, carving of 70000 mesh point per second.
direct laser engraving system mainly has three parts: the high-energy laser, laser transmission system, optical system, by adjusting the focal length, to adjust the energy per unit area.

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