METHOD FOR CLEANING AND STRIPPING A TURBOSHAFT ENGINE BLADE USING A PULSED LASER

The invention relates to a method for cleaning a turboshaft engine blade (1) comprising a superalloy body covered with a coating, in which the coating of the blade (1) is at least partially machined using a pulsed laser (3), at least the feed rate of the pulsed laser (3) and the pulse frequency of t...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	FEVRIER, THIERRY, GESTIN, JEROME, BOURDIN, FRANCK, HUGOT, JULIETTE
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	BLASTING CLADDING OR PLATING BY SOLDERING OR WELDING CLEANING CLEANING IN GENERAL CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING ENGINE PLANTS IN GENERAL HEATING LIGHTING MACHINE TOOLS MACHINES OR ENGINES IN GENERAL MECHANICAL ENGINEERING METAL-WORKING NOT OTHERWISE PROVIDED FOR NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES PERFORMING OPERATIONS PREVENTION OF FOULING IN GENERAL SOLDERING OR UNSOLDERING STEAM ENGINES TRANSPORTING WEAPONS WELDING WORKING BY LASER BEAM
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Beschreibung
Zusammenfassung:	The invention relates to a method for cleaning a turboshaft engine blade (1) comprising a superalloy body covered with a coating, in which the coating of the blade (1) is at least partially machined using a pulsed laser (3), at least the feed rate of the pulsed laser (3) and the pulse frequency of the pulsed laser (3) being parameterized such that the machined surface of the blade (1) has a roughness of 4 µm to 10 µm. Un procédé de nettoyage d'une aube (1) de turbomoteur comportant un corps en superalliage recouvert d'un revêtement, procédé dans lequel on usine au moins partiellement le revêtement de l'aube (1) au moyen d'un laser impulsionnel (3), au moins la vitesse d'avance du laser impulsionnel (3) et la fréquence d'impulsion du laser impulsionnel (3) étant paramétrés pour que la surface usinée de l'aube (1) présente une rugosité comprise entre 4 µm et 10 µm.