Forges De Bologne

Snecma

Jacques Tschofen

Isabelle Peslerbe

Anne Thenaisie

A method for preparing metal-matrix composites including cold-process isostatic compaction of previously mixed powders and hot-process uniaxial pressing of the resulting compact is disclosed. The method enables metal-matrix composites with improved properties to be obtained. A device for implementing isostatic compaction comprising a latex sheath into which the mixture of powders is poured, a perforated cylindrical container in which the latex sheath is arranged, and means for sealed insulation of the mixture of powders contained in the sheath is also disclosed.

Method for preparing metal-matrix composite and device for implementing said method

A mechanical part presents a main direction along which there extends a central zone forming a core and a peripheral zone forming a casing that surrounds the core. The core and the casing present a metallurgical bond between each other. The core is made of a first material presenting at least a metal matrix, and the casing is made of a second material presenting at least a metal matrix. The metal matrices of the first and second materials are based on the same metal, and at least one of the first and second materials is made of a metal matrix composite containing reinforcing elements dispersed in the metal matrix. The mechanical part can be used as a blade for a fan or a low pressure compressor.

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Bologne, France

Jacques Tschofen