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

摘要

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.

主权项

1. A method of manufacturing a molding element for a tire mold, the molding element comprising a sintered part and a non-sintered part attached to the sintered part, the sintered part comprising a shell and a core internal to the shell and formed as one piece with the shell, the core comprising a meshed structure comprising a plurality of cavities, the method comprising:
manufacturing the sintered part of the molding element from a metallic powder deposited on a surface of a non-sintered support plate which is completely flat except for any machined striations, wherein the metallic powder is fused layer by layer, and wherein the sintered part is attached to the support plate by fused metallic powder; machining the support plate to form the non-sintered part of the molding element, the machining of the support plate forms the non-sintered part formed as a base on which the sintered part of the molding element rests completely, and the support plate is machined to create a surface exactly the size of the sintered part at a junction where the support plate and the sintered part meet.