Snecma

Safran Aircraft Engines

Safran

Serge Dillenseger

Daniel Quach

Patrick Pourfilet

Philippe Bouthemy

Serge Alain Fargeas

Ngadia Taha Niane

Jean-Louis Martial Verger

David Grange

Saïd Boukerma

Dominique Coyez

Jean-Claude Marcel Auguste Hanny

Philippe Metron

Julien Gelebart

Hervé Gras

Didier Maurice Marceau Guerche

A ceramic material mold for use in molding a turbine engine blade from a molten metal, the blade including a root, an inner platform, an airfoil, and an outer platform, and the mold including a cavity having the shape of the blade, and an auxiliary grain duct including a first segment and a second segment that is an extension of the first segment, the first segment opening out at one end into a first portion of the cavity forming the root of the blade, and at another end into a second portion of the cavity forming a lip of the inner platform of the blade, the second segment opening out at one end into the second portion of the cavity, and at another end into a third portion of the cavity forming a lip of the outer platform of the blade.

Mold for fabricating a monocrystalline blade by casting, a fabrication installation and method using the mold

The invention relates to the field of monocrystalline casting, and in particular to a mold () for monocristalline casting comprising at least a molding cavity (), a starter cavity () having at least a first volume () in the form of an upside-down funnel, and a distinct second volume () forming a plinth at the bottom of the first volume and projecting perceptibly relative to said first volume in at least one horizontal direction, a selector channel () connecting said starter cavity () to said molding cavity (), and a support rod () that is laterally offset relative to said selector channel, and that connects the second volume () of the starter cavity () to the molding cavity (). The invention also provides a casting method using such a mold ().

Monocrystalline casting mold

A tooling for injection-molding a part, the tooling including two cavity blocks each including a cavity formed therein of a shape corresponding to a shape of a part that is to be molded once the cavity blocks have been superposed. At least one of the cavity blocks includes a mechanism for positioning a core, which mechanism includes at least one bearing surface for bearing against the core and at least one presser screw screwed into a threaded passage of the cavity block for purpose of holding the core in position against the bearing surface. The tooling further includes a force-limiter limiting force applied to the core by the presser screw.

Device for injection-moulding a part

A tooling for injection-molding a part, the tooling including two cavity blocks each including a cavity formed therein of a shape corresponding to a shape of a part that is to be molded once the cavity blocks have been superposed, at least one of the cavity blocks including an ejection mechanism ejecting the molded part and including at least one ejector movable between a molding position and an ejection position. The ejector is guided to move between its two positions along a curved path, or a circular arc, of shape that corresponds to a shape of a portion of the mold part to be extracted from the cavity.

Tooling for injection-molding a part

Growing community of inventors

Jouy le Moutier, France

Serge Dillenseger