Process for manufacturing a hollow turbomachine blade and a mult

Details Process for manufacturing a hollow turbomachine blade and a mult Process for manufacturing a hollow turbomachine blade and a mult

1997-06-09

1999-08-10

Cuda, I

Metal working

Method of mechanical manufacture

Impeller making

298897, B23P 1500

Patent

active

059339519

ABSTRACT:
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.

REFERENCES:
patent: 5083371 (1992-01-01), Leibfried et al.
patent: 5323536 (1994-06-01), Fowler et al.
patent: 5419040 (1995-05-01), Weisse et al.
patent: 5469618 (1995-11-01), LeMonds et al.
patent: 5479705 (1996-01-01), Fowler et al.
patent: 5581882 (1996-12-01), Fowler et al.

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