Compagnie Generale Des Etablissements Michelin

Michelin Recherche Et Technique S.a.

Daniel Bonnet

Arkadiusz Waszkiewicz

The invention relates to a method of manufacturing a molding element for a tire mold. The molding element comprises a sintered part and a non-sintered part attached to the sintered part. The sintered part comprises a shell and a core internal to the shell and formed as one piece with the said shell. The core comprises a meshed structure comprising a plurality of cavities. The method of manufacture comprises a step of manufacturing the sintered part of the molding element from a metallic powder deposited on a flat surface of a support plate and fused layer by layer, the sintered part being attached to the support plate by fused metallic powder. The method also comprises a step of machining the support plate to form the non-sintered part of the molding element.

Method for manufacturing a molding element by fritting with a completely planar unfritted portion, and corresponding molding element

Sintering device comprising a laser source, the light power of which is capable of selectively melting successive layers of metal powders, and a reference plate on which the first metal powder layer is deposited and which serves as a base for the construction of an object, characterized in that the said plate comprises one or more recesses, the shape of which is determined so as to make the said recesses capable of receiving inserts of a given shape.

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Clermont-Ferrand, France

Daniel Bonnet