Method of manufacturing a hollow turbomachine blade and press - furnace has multiple effect which is used in its use

摘要

A method of manufacture of a blade (9) of the hollow turbomachine by a titanium alloy of ta6v type comprises a hot forming operation for shaping the isotherm in a press (48, 49) at a temperature between 700 deg.c and 940 deg.c, under the action of at least two stays (46) and of a greenhouse - side (45) blocking the blade (9) placed on a forming die (21), while ensuring a controlled deformation speed so as to obtain a length of the fibers that is - to - say the elongations of the various fibers of the part with a controlled distribution of either side of the central fiber. A press - oven at a multiple effect is especially designed for implementing the method.