Method for extending the life of attachments that attach blades to a rotor

Method for extending the life of attachments that attach blades to a rotor

A method for extending the life of the attachments that attach blades to rotors, particularly for aerojet engines. Such a method is notable in that it employs intensive ultrasonic peening of the grooves and of the roots of the blades, this peening being performed with an Almen intensity at least equ...

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Bibliographische Detailangaben
Hauptverfasser: Chareyre, Francis, Berthelet, Benoit, Fradin, Willy, Hoffmann, Hakim, Kerneis, Stephane, Ntsama-Etoundi, Marie-Christine, Simon, Guillaume
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:A method for extending the life of the attachments that attach blades to rotors, particularly for aerojet engines. Such a method is notable in that it employs intensive ultrasonic peening of the grooves and of the roots of the blades, this peening being performed with an Almen intensity at least equal to F8A, so as to increase the compressive prestress in the contact surfaces without increasing the roughness of these surfaces.