Process for marking the surface of a mechanical part by a graphical representation preset as holographic effect
2014
The invention relates to a method for marking the surface of a mechanical part by a predefined graphic representation with holographic effect, comprising applying, by means of a laser source (14), a succession of pulses lasers on an outer surface (10a) of a workpiece (10) to be marked with the interposition between the laser source and the outer surface of the part of different masks (16) each having a particular pattern, each laser pulse having a pfd at least 20 MW / cm 2 and less than or equal to 100 ns.
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