Safran Aircraft Engines

Snecma

Geoffrey Begue-Duthu

Pascal Fabrice Bilhe

Vincent Guipont

Pascal Bilhe

A method of marking the surface of a mechanical part with a predefined graphic having a holographic type effect, the method including using a laser source to apply a succession of laser pulses to the outside surface of a part for marking, with different masks being interposed between the laser source and the outside surface of the part, each mask having a particular pattern, each laser pulse having a power density of at least 20 MW/cmand a duration that is less than or equal to 100 ns.

Method for marking the surface of a mechanical part with a predefined graphical representation having a holographic effect

The invention relates to a method of surface marking a mechanical part with a predefined graphical representation, the method comprising using a laser source to apply a single laser pulse to an outside surface of a part for marking, with a mask being interposed between the laser source and the outside surface of the part, the mask having a predefined graphical representation, and the laser pulse having power flux density of at least 20 MW/cmand a duration less than or equal to 100 ns.

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Moissy-Cramayel, France

Geoffrey Begue-Duthu