Safran

Didier Dangeul

Ngadia Taha Niane

Mirna Bechelany

Ramzi Bohli

Didier Maurice Marceau Guerche

Alain Armel Le Hegarat

A method for forming a wax model for the manufacture of turbine blades by lost-wax casting, in which a core is provided, a lower surface shell and an upper surface shell are positioned and bonded on either side of ducts of the core adjacent to the root, the core equipped with the lower surface shell and with the upper surface shell is positioned in an injection mold, wax is injected around the core equipped with the lower surface shell and with the upper surface shell, so as to form a wax model including a blade airfoil and a blade root including a fir tree, the lower surface shell and the upper surface shell being positioned around the core so as to form a portion of the fir tree of the wax model.

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Moissy-Cramayel, France

Didier Dangeul