Patent ID: 11964323
Assignee: BAYERISCHE MOTOREN WERKE AKTIENGESELLSCHAFT
Field: Materials, metallurgy (Chemistry)
Classification: CPC B | IPC B

Claim 8:
9. A method for producing at least one metal die-cast part, comprising:
providing a three-plate die casting mold comprising;
a first, a second, and a third mold part, with the third mold part being arranged between the first and the second mold parts;
at least one die cavity;
a sprue system, through which a metal melt is fed to the at least one die cavity; and
at least one spring-pretensioned pressing element arranged in the third mold part, wherein a first mold parting plane is between the second mold part and the third mold part, and a second mold parting plane is between the first mold part and the third mold part;

closing the die casting mold and carrying out a die casting operation, with metal melt being pressed into the at least one die cavity through the sprue system;
opening the die casting mold after the metal melt has solidified, with a sprue created in the sprue system being pressed against the first mold part by the at least one spring-pretensioned pressing element in the second mold parting plane and tearing off from the at least one metal die-cast part.