Back to results
US 2014/0110077 A1Published application
Casting Process and Apparatus
AssigneeUnited Technologies Corporation
InventorMark A. White
Life of this patent
Estimating the term…
Abstract
A casting method includes coupling a mold to a crucible, the mold having one or more part-defining cavities and one or more feed passageways. A first rotating of the crucible and mold pours molten metal from the crucible through the one or more feed passageways into the one or more part-defining cavities. A second rotating of the crucible and mold returns molten metal from the one or more feed passageways, while leaving the part-defining cavities filled.
Claims16
A casting method comprising:
- coupling a mold to a crucible, the mold having:
- one or more feed passageways, each of the feed passageways in fluid communication with a constriction, the constriction forming a gate portion of the feed passageway located between an upstream portion and a downstream portion;
- one or more part defining cavities, each of the part defining cavities in fluid communication with one of the feed passageways via one of the constrictions;
- localized insulation arranged along the upstream portion of the one or more feed passageways;
- and
- an enhanced local surface exposure arranged along the downstream portion of the one or more feed passageways;
- first rotating the crucible and mold to pour molten metal from the crucible through the one or more feed passageways into the one or more part-defining cavities;
- and
- second rotating the crucible and mold to return molten metal from the one or more feed passageways, while leaving the part-defining cavities filled.
6 more elements
15-19. (canceled)
Dependencies are inferred from the claim text.