Metal working – Method of mechanical manufacture – Impeller making
Patent
1997-10-16
1999-04-27
Cuda, I
Metal working
Method of mechanical manufacture
Impeller making
298897, B23P 1500
Patent
active
058966587
ABSTRACT:
In a method of manufacturing a hollow blade for a turbomachine in which a plurality of primary sheet-like parts having anti-diffusion coatings in predefined areas are assembled face to face and diffusion welded together before being deformed to shape by pressurized gas and superplastic forming. The assembly, before being diffusion welded together, is subjected to a preheating treatment in an oven to remove the binder from the anti-diffusion coatings, and then, without moving the assembly, the interior of the assembly is evacuated while simultaneously progressively increasing the temperature at a rate V to a value T to produce a permanent plastic deformation of the parts, the interior of the assembly then being maintained in vacuo at the temperature T while an isostatic pressure is applied to the exterior of the assembly so as to produce a compacting of the anti-diffusion material and a prewelding of the facing areas which are not coated with the anti-diffusion material.
REFERENCES:
patent: 5083371 (1992-01-01), Leibfreid et al.
patent: 5323536 (1994-06-01), Fowler et al.
patent: 5419040 (1995-05-01), Weisse et al.
patent: 5469618 (1995-11-01), Le Mands et al.
patent: 5479705 (1996-01-01), Fowler et al.
patent: 5581882 (1996-12-01), Fowler et al.
patent: 5636440 (1997-06-01), Bichon et al.
Calle Gilles Michel Georges Louis
Klein Gilles Charles
Cuda I
Societe Nationale d'etude et de Construction de Moteurs d'Aviati
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