TURBINE ENGINE BLADE PREFORM

The invention relates to a blade preform (46) including a strut connecting a plat-form (16) to a blade root portion (14) extending longitudinally in an upstream-downstream direction, an upstream web (26) and a downstream (28) web, which each extend in a direction substantially perpendicular to the l...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	DUPEYRE RAPHAËL JEAN PHILIPPE, TANG BA-PHUC, CONGRATEL SÉBASTIEN SERGE FRANCIS, KLEIN GUILLAUME, MATHIEU DAVID
Format:	Patent
Sprache:	eng
Schlagworte:	CASTING CASTING OF METALS CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES FOUNDRY MOULDING PERFORMING OPERATIONS POWDER METALLURGY TRANSPORTING
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Beschreibung
Zusammenfassung:	The invention relates to a blade preform (46) including a strut connecting a plat-form (16) to a blade root portion (14) extending longitudinally in an upstream-downstream direction, an upstream web (26) and a downstream (28) web, which each extend in a direction substantially perpendicular to the longitudinal direction of the blade root and are formed at the upstream and downstream ends of the strut. The upstream (26) and downstream (28) webs connect the upstream and downstream ends of the plat-form (16) to the upstream and downstream ends of the blade root (14). According to the invention, the blade root (14) extends in a direction perpendicular to the longitudinal direction of the blade root over a distance smaller than that of the upstream and downstream webs (26, 28) and the side edges (40) of each web (26, 28) are extended by walls that converge (44) at the flanks of the blade root.