Snecma

Safran Aircraft Engines

Micah Gummel

Richard Mathon

Antoine Phelippeau

Jean-François Durand

Yann Marchal

Olivier Patrigeon

A device for holding a fiber texture on an impregnation mandrel of a winding machine, the device including a cross-member forming a support having each of its ends for fastening on one of cheekplates of the mandrel, a central pad carrier mounted on the cross-member and including a pad for pressing against a fiber texture layer wound on the mandrel, two lateral pad carriers mounted on the cross-member and each including a main pad for pressing against the fiber texture layer wound on the mandrel and a lateral pad for pressing against a lateral margin of the fiber texture layer wound on the mandrel, and a mechanism exerting a clamping force urging the pads against the fiber texture layer wound on the mandrel.

Device for holding a fiber texture on an impregnation mandrel of a winding machine

A winding machine for winding a fiber texture on an impregnation mandrel, the winding machine including: a takeup mandrel for storing a fiber texture, the takeup mandrel having an axis of rotation; an impregnation mandrel for having superposed layers of the fiber texture stored on the takeup mandrel wound thereon, the impregnation mandrel having an axis of rotation that is substantially parallel to the axis of rotation of the takeup mandrel; at least one electric motor for driving the mandrels in rotation about their respective axes of rotation; and a control unit for controlling the at least one electric motor for driving the mandrels in rotation.

Machine for winding a fiber texture onto an impregnation mandrel, and the use of such a machine for making a gas turbine casing out of composite material

A compacting device for a machine for winding a fiber texture on an impregnation mandrel, the device including a frame including mounted thereon a compacting roller for bearing against an outside surface of an impregnation mandrel of a winding machine, and two compacting wheels, each configured to bear against a corner formed between the outside surface and a side plate of the impregnation mandrel.

Compacting device for a machine for winding a fibrous texture onto an impregnation mandrel

A method for manufacturing an article made of a composite material including a polymer matrix reinforced by a fibrous structure, the method including: placing the fibrous structure on a substrate; forming a molding surface, covering the structure with a mating mold; and compacting the structure by moving the surface of the mating mold toward the surface of the substrate. The substrate includes a cylindrical portion and a wall positioned radially relative to the cylindrical portion, and the mating mold includes two portions that are mobile relative to one another and that are moved toward the axis of the cylindrical portion and towards the radial wall of the substrate, respectively. The method can be used for example for manufacturing a fan casing of a turbojet engine.

Method for manufacturing an article made of composite material

A device for assisting in cutting of a fiber texture layer wound on an impregnation mandrel of a winding machine, the device including two positioning stops each configured to be positioned on a respective side plate of the impregnation mandrel, and a plate forming a cutting jig that is configured to be positioned on the fiber texture layer that is to be cut in register with the protective film, the plate including a slot extending in position between the side plates of the impregnation mandrel and serving to guide a cutting tool.

Growing community of inventors

East Kingston, NH, United States of America

Micah Gummel