PROCESS FOR MANUFACTURING A METAL PART BY SELECTIVELY MELTING A POWDER

The invention relates to a process for manufacturing a metal part (17) by selectively melting a powder (2), said process consisting in: forming, layer by layer, on the plate (6), and at the same time as the part (17), at least one element (21, 22) for retaining and supporting the part, this element...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	CHANTOISEAU, OLIVIER, LE RAZER, BRUNO, MEREAUX, BERYL CASSANDRE ANNE, JOBEZ, SOPHIE MARTINE, MOTTIN, JEAN-BAPTISTE
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	BLASTING CASTING COMBINED OPERATIONS ENGINE PLANTS IN GENERAL HEATING LIGHTING MACHINE TOOLS MACHINES OR ENGINES IN GENERAL MAKING METALLIC POWDER MANUFACTURE OF ARTICLES FROM METALLIC POWDER MECHANICAL ENGINEERING METAL-WORKING NOT OTHERWISE PROVIDED FOR NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES OTHER WORKING OF METAL PERFORMING OPERATIONS POWDER METALLURGY STEAM ENGINES TRANSPORTING UNIVERSAL MACHINE TOOLS WEAPONS WORKING METALLIC POWDER
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Beschreibung
Zusammenfassung:	The invention relates to a process for manufacturing a metal part (17) by selectively melting a powder (2), said process consisting in: forming, layer by layer, on the plate (6), and at the same time as the part (17), at least one element (21, 22) for retaining and supporting the part, this element (21, 22) being away from and separate from the part (17) and separated therefrom by a gap (23) filled with unmelted powder (2); after the part (17) has been completely produced, removing, at least partly, the remaining powder (2) in the gap (23) between the part (17) and the element (21, 22), for example by suction, blowing or vibration; and separating the part (17) from the plate (6). L'invention concerne un procédé de fabrication d'une pièce métallique (17) par fusion sélective d'une poudre (2), consistant à : - former couche par couche sur le plateau (6) et en même temps que la pièce (17), au moins un élément de maintien et de support (21, 22) de la pièce, cet élément (21, 22) étant écarté et distinct de la pièce (17) et séparé de celle-ci par un intervalle (23) rempli de poudre (2) non fondue, - après réalisation complète de la pièce (17), retirer, au moins en partie, la poudre (2) restante dans l'intervalle (23) entre la pièce (17) et l'élément (21, 22), par exemple par aspiration, soufflage ou vibration, et - séparer la pièce (17) du plateau (6).