Patent ID: 8434546
Filing Date: 2013-05-07
Classification: B22C,B22D

Abstract:
1. A vehicle engine cylinder head casting device, comprising: a plurality of mold sections that cooperate to form a closed casting mold during a casting operation; a core residing within a core receiving cavity of the casting mold, the core supported at one end by at least one core support element of the mold and at the other end by contact with a molding surface; and a core retention device, the core retention device comprising: wherein the pin of the core retention device is oriented such that the direction of the pressing force exerted on the core will be substantially along a direction of closing mold movement so as to produce a first retention force component that resists core movement in a first direction; and wherein the pin of the core retention device is located to exert a pressing force on the core at a location that creates a moment about a supported end of the core, thereby producing a second retention force component that is substantially perpendicular to the direction of the pressing force exerted by the pin and resists core movement in a second direction.