Societe Nationale D'etude Et De Construction De Moteurs D'aviation

Societe Dassault Aviation

Etablissements Robert Creuzet

Mathieu Philippe Bichon

Alain Georges Lorieux

Jean-Francedillaois Georges Lacuisse

Xavier G Coudray

Jean-Pierre SErges Bergue

Christophe Nicolas Huon De Kermadec

Bernard Armand Costeplane

Alex Pierre Deblois

Bruno Andre Rolland

A process for manufacturing a hollow turbomachine blade made from a type TA6V titanium alloy includes a hot forming step in which an element of the blade is isothermally shaped in a press at a temperature between 700.degree. C. and 940.degree. C. under the action of at least two stamps and a holding-clamp which press the blade element on a shaping die, while ensuring a controlled deformation rate so as to obtain a lengthening of the fibres, that is to say the elongation of the different fibres of the element, with a controlled distribution on both sides of the central fibre. A multiple-action furnace-press designed for carrying out the process is also described.

Process for manufacturing a hollow turbomachine blade and a

A process for manufacturing a hollow turbomachine blade made from a titanium alloy of the TA6V type includes a hot twisting step in which an element of the blade is twisted progressively at a temperature above 700.degree. C. by a plurality of bars which are rotated about the twist axis and act on collars previously fixed to the element, the distribution and number of collars being determined according to the desired twist to be imparted and such as to obtain a linear twist development between each collar. Hot twisting apparatus for use in carrying out the operation is also described.

Process for manufacturing a hollow turbomachine blade and progressive

A method of manufacturing a hollow machine blade consisting of two skins ining an internal cavity and interconnected by stiffeners comprises:

Method and manufacturing a hollow turbomachine blade

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Ermont, France

Mathieu Philippe Bichon