Injection mold for a wax model of a turbine blade having an isostatic core holder
US8708029B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 14, 2011 |
| Grant date | Apr 29, 2014 |
| Priority date | — |
| Expiry date | Oct 14, 2031 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29K2091/00
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An injection mold producing a model of a turbine engine blade, including: a top surface that folds onto a bottom surface, both surfaces including long rods for supporting a core generating cooling cavities inside the blade, wherein the long rods of the bottom surface are configured to contact a first surface of the airfoil at bearing points, and the long rods of the top surface are configured to contact a second surface of the airfoil at clamping points; at least one short rod extending from one of the surfaces of the mold and pointing towards a false point located on one of the surfaces of the airfoil, the length of the short rod being shorter than the distance between the surface of the mold and the surface of the blade at the false point, and the difference between the length and the distance being equal to tolerance in relation to positioning of the false point in event of deformation of the core.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.