US 11,925,976 B2
Method for manufacturing a mold element for a tire mold
Didier Tanguy, Clermont-Ferrand (FR); and Jerome Lepretre, Clermont-Ferrand (FR)
Assigned to COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN, Clermont-Ferrand (FR)
Appl. No. 17/418,172
Filed by COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN, Clermont-Ferrand (FR)
PCT Filed Dec. 12, 2019, PCT No. PCT/EP2019/084844
§ 371(c)(1), (2) Date Jun. 24, 2021,
PCT Pub. No. WO2020/136015, PCT Pub. Date Jul. 2, 2020.
Claims priority of application No. 1874148 (FR), filed on Dec. 26, 2018.
Prior Publication US 2022/0105560 A1, Apr. 7, 2022
Int. Cl. B22D 17/24 (2006.01); B22D 19/00 (2006.01); B29C 33/38 (2006.01); B29D 30/06 (2006.01); B33Y 80/00 (2015.01)
CPC B22D 17/24 (2013.01) [B22D 19/00 (2013.01); B29C 33/3842 (2013.01); B29D 30/0606 (2013.01); B33Y 80/00 (2014.12); B29D 2030/0612 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A method for manufacturing a mold element for a tire mold using a manufacturing device comprising a die and a counter-mold defining a molding cavity in a closed position, the method comprising the following steps:
opening the manufacturing device;
placing at least one insert, produced by laser sintering, against a molding surface of the die;
mounting at least one wedge on the die so as to bear against the at least one insert in order to immobilize it relative to the molding surface of the die;
closing the manufacturing device, the counter-mold pressing onto the at least one wedge in the closed position in order to keep the at least one insert pressed against the molding surface of the die;
injecting aluminum 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 the at least one insert and by the aluminum.