B - Operations – Transporting – 22 – D
Patent
B - Operations, Transporting
22
D
B22D 19/00 (2006.01) B22C 9/10 (2006.01) F02F 7/00 (2006.01)
Patent
CA 2382962
An engine block mold package is assembled from resin-bonded sand cores in a manner that reduces parting lines on the exterior surfaces of the mold package. An assembly of multiple cores (core package) is formed and includes multiple inter-core parting lines extending in different directions on exterior surfaces of the core assembly. The core package is disposed between a base core and a cover core configured to enclose the core package and form a single continuous exterior parting line about the assembled mold package.
General Motors Corporation
Gm Global Technology Operations Inc.
Gowling Lafleur Henderson Llp
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