Snecma

Snecma Moteurs

Daniel Lhomme

Alain Lorieux

Jean-Michel Franchet

Jean-Pierre Ferte

Gilles Klein

Jean-Jacques Levy

Alain Bourgeois

Stéphane André Leveque

Claude Plazanet

Jean-Louis Despreaux

Pierre George

Philippe Joffroy

Camille Cougnaud

Stéphane Leveque

A process for manufacturing reinforcing parts () for leading edges () and/or trailing edges () of fan blades () is described. In particular, this invention relates to the use of the SPF/DB (&#x3c;&#x3c;Super Plastic Forming/Diffusion Bonding &#x3e;&#x3e;) process for this type of non-hollow part.

Process for manufacturing a reinforcing leading or trailing edge for a fan blade

Method of manufacturing a hollow blade () for a turbomachine in which the blade () is made from a preform () obtained from external primary parts (). In order to reduce costs, the root part () of the blade is formed from spare material () entirely located on only one of the two external primary parts of the preform ().

Method of manufacturing a hollow blade for a turbomachine

A forging die includes on one face, a half-imprint of a part to be forged such as a turbine engine blade. The die also includes on the face, a device for forming a marking along two directions relatively to which the position of the imprint is defined, the device including two pads protruding relatively to the face and each including two notches defining the two directions. This device preferably includes two pads machined on the die at the same time as the imprint, and each including two notches in the form of a cross.

Forging die with marking means

The invention relates to a method of manufacturing a hollow blade for turbine engine comprising a foot and a rotor blade, the method comprising a production stage of two external parts () as well as an assembling stage via diffusion bonding of these two external parts so as to obtain a blade preform.

Method of manufacturing a hollow blade for a turbine engine

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Bessancourt, France

Daniel Lhomme