METHODS AND MULTI-PURPOSE POWDER REMOVAL FEATURES FOR ADDITIVE MANUFACTURING

The present disclosure generally relates to methods for additive manufacturing (AM) for fabricating multi-walled structures. A multi-walled structure includes a first wall having a first surface and a second wall having a second surface facing the first surface to define a passage having a width bet...

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Bibliographische Detailangaben
Hauptverfasser:	WAYMEYER, STEPHEN JOSEPH, MANTEIGA, JOHN ALAN, WILSON, GREGG HUNT
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	ADDITIVE MANUFACTURING TECHNOLOGY ADDITIVE MANUFACTURING, i.e. MANUFACTURING OFTHREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVEAGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING,STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING BLASTING CASTING ENGINE PLANTS IN GENERAL HEATING LIGHTING MACHINES OR ENGINES IN GENERAL MAKING METALLIC POWDER MANUFACTURE OF ARTICLES FROM METALLIC POWDER MECHANICAL ENGINEERING NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES PERFORMING OPERATIONS POWDER METALLURGY SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS STEAM ENGINES TRANSPORTING WEAPONS WORKING METALLIC POWDER WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	The present disclosure generally relates to methods for additive manufacturing (AM) for fabricating multi-walled structures. A multi-walled structure includes a first wall having a first surface and a second wall having a second surface facing the first surface to define a passage having a width between the first surface and the second surface in a first direction. The multi- walled structure also includes an enlarged powder removal feature connecting the first wall and the second wall. The enlarged powder removal feature has an inner dimension greater than the width in the first direction and at least one open end in a direction transverse to the first width. La présente invention concerne de manière générale des procédés de fabrication additive (AM) pour fabriquer des structures à parois multiples. Une structure à parois multiples comprend une première paroi ayant une première surface et une seconde paroi ayant une seconde surface faisant face à la première surface pour définir un passage ayant une largeur entre la première surface et la seconde surface dans une première direction. La structure à parois multiples comprend également un élément d'élimination de poudre élargi reliant la première paroi et la seconde paroi. L'élément d'élimination de poudre élargi a une dimension interne supérieure à la largeur dans la première direction et au moins une extrémité ouverte dans une direction transversale à la première largeur.