Process for manufacturing or repairing a monobloc bladed disc

The invention relates to a process for manufacturing or repairing a monobloc bladed disc including a stage of forming, on a protruding projection ( 4 ) belonging to a disc ( 1 ) and extending from an upstream end ( 4 a) to a downstream end ( 4 b) along a protruding projection chord ( 6 ), a welded j...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: MIRAUCOURT GERARD, ADDE DANIELLE, BOURGEOIS MARIE-FRANCE, SONIAK FRANCIS, FERTE JEAN-PIERRE, LESTOILLE PATRICK
Format: Patent
Sprache:eng
Schlagworte:
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Beschreibung
Zusammenfassung:The invention relates to a process for manufacturing or repairing a monobloc bladed disc including a stage of forming, on a protruding projection ( 4 ) belonging to a disc ( 1 ) and extending from an upstream end ( 4 a) to a downstream end ( 4 b) along a protruding projection chord ( 6 ), a welded joint surface ( 8 ) intended to allow a subsequent stage of fitting a blade ( 2 ) by linear friction welding onto the protruding projection ( 4 ) of the disc ( 1 ). According to the invention, the stage of forming the welded joint surface ( 8 ) is carried out in such a way that it includes at least two butt-jointed plane portions ( 8 a, 8 b, 8 c), arranged in sequence along the protruding projection chord ( 6 ). Application to turboshaft engine rotors.