Abstract: A method for manufacturing a mold element using a manufacturing device comprising a die and a counter-mold defining a molding cavity in the closed position, comprises: opening the manufacturing device; placing at least one insert 22, produced by laser sintering, against a molding surface of the die; mounting at least one wedge 28 on the die so as to bear against said insert in order to immobilize it relative to said molding surface; closing the manufacturing device, the counter-mold pressing onto said wedge in order to keep said insert pressed against said molding surface; injecting aluminium into the molding cavity of the manufacturing device; opening the manufacturing device; and extracting from the manufacturing device the mold element provided with a molding face formed by at least part of said insert and by the aluminum.

Abstract: A mold (20) for vulcanizing tires comprises an upper part (24) and a lower part (26), the upper part and the lower part being able to move axially between an open position and a closed position in which the lower part and the upper part meet along a joint line (31). A mold part (24, 26) has at least one sipe blade (50), all or some of the sipe blades extending substantially axially or helically on the radially internal surface (30) of the mold, all or some of the sipe blades being: contiguous at one of their ends with a protruding element (46) and contiguous at the other of their ends with a recessed element (44) or with the other part of the mold, and able to move relative to the tire in the wake of the protruding element (46), during opening of the mold.

Abstract: A method for manufacturing a mold element using a manufacturing device comprising a die and a counter-mold defining a molding cavity in the closed position, comprises: opening the manufacturing device; placing at least one insert 22, produced by laser sintering, against a molding surface of the die; mounting at least one wedge 28 on the die so as to bear against said insert in order to immobilize it relative to said molding surface; closing the manufacturing device, the counter-mold pressing onto said wedge in order to keep said insert pressed against said molding surface; injecting aluminium into the molding cavity of the manufacturing device; opening the manufacturing device; and extracting from the manufacturing device the mold element provided with a molding face formed by at least part of said insert and by the aluminum.

Abstract: A Method for manufacturing molding elements for molds is provided herein. The molds are used for molding tires provided with a tread with a circumferential arrangement of tread pattern elements. The method includes: a step consisting in aligning a plurality of basic linings; a step consisting in generating, from the basic tread circumference portion, an intermediate support; and obtaining an unfinished molding element from the intermediate support.

Abstract: Cutting method for cutting a semi-finished molding element to yield segments of a mold for molding and vulcanizing tires is disclosed herein. The said molding element includes a plurality of segments originating from one and the same molding operation, the said molding element also includes at least one pair of male securing members on each side of a molding face to form the tread patterns in the tread of the tire that is to be molded.

Abstract: Cutting method for cutting a semi-finished molding element to yield segments of a mold for molding and vulcanizing tires is disclosed herein. The said molding element includes a plurality of segments originating from one and the same molding operation, the said molding element also includes at least one pair of male securing members on each side of a molding face to form the tread patterns in the tread of the tire that is to be molded.

Abstract: A Method for manufacturing molding elements for molds is provided herein. The molds are used for molding tires provided with a tread with a circumferential arrangement of tread pattern elements. The method includes: a step consisting in aligning a plurality of basic linings; a step consisting in generating, from the basic tread circumference portion, an intermediate support; and obtaining an unfinished molding element from the intermediate support.