B - Operations – Transporting – 23 – P
Patent
B - Operations, Transporting
23
P
B23P 15/02 (2006.01) B23K 33/00 (2006.01) F01D 5/30 (2006.01) F01D 5/34 (2006.01) F04D 29/32 (2006.01)
Patent
CA 2111045
The present invention concerns a method for producing a monobloc rotor with hollow blades and said monobloc rotor obtained via said method. The object of the invention is to embody a method able to secure hollow blades on a rotor disk without forming any weld seam projection inside the blade. This objective is attained by means of a method consisting of: - providing on the periphery of the disk (11) means forming a projection (21) whose shape approximately corresponds to the shape of the inside (14) of the radially internal extremity (26) of the hollow blades, these means (21) being encompassed by a joining surface (27 ; 43), - nesting the extremity (26) of each blade (13) on said means forming a projection (21), - securing each blade (13) to the disk (11) by welding means so that the surface (31) defined by the thickness of the walls of the blade (13) is welded to the joining surface (27 ; 43). Fig. 2.
Goudreau Gage Dubuc
Snecma
Societe Nationale D'etude Et de Construction de Moteurs D'aviati
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