Snecma

Yannick Collin

David Mathieu

Christian Bariaud

Denis Gabriel Trahot

Christophe Remy

Eric Herzer

Thomas Lardellier

Xavier Godfrind

A movable blade for a turbomachine, the blade including at its distal end a top portion including opposite first and second side edges and upstream and downstream sealing wipers. Each of the first and second side edges has a substantially Z-shaped profile between the upstream and downstream wipers. On a side of the first side edge, the platform includes a first outwardly projecting rim not connected to either of the upstream and downstream wipers. The platform includes a second outwardly projecting rim, the second rim including a downstream portion connected to the downstream wiper and extending along the second edge, and an upstream portion extending the downstream portion as far as the upstream wiper, and set back relative to the second side edge.

Movable blade for a turbomachine

A method of manufacture of a wax model of an annular bladed turbomachine stator assembly includes in succession the positioning, in a mold, of a core intended to form the impression of a cavity of a blade of the assembly, the injection of a wax in the mold, and the removal of the wax model fitted with the core from the mold. The core is manufactured in metal and is positioned such that its radially internal end is housed in the portion of the mold defining the blade including the cavity, away from the radially internal end of this portion of the mold.

Method of lost-wax manufacture of an annular bladed turbomachine assembly, metal mould and wax model for implementing such a method

Growing community of inventors

Saint Maur des Fosses, France

Yannick Collin