Method for forming cooling holes having separate complex and simple geometry sections
US10927705B2 · kind B2 · utility
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4References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 17, 2018 |
| Grant date | Feb 23, 2021 |
| Priority date | — |
| Expiry date | Sep 8, 2038 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05D2260/202
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A gas turbine part with a cooling hole, is fabricated by first forming a model of a wall of a gas turbine part. The wall is defined by first and second surfaces, the first surface having an aperture indentation possessing a complex geometry and extending into but not all the way through the wall of the gas turbine part. A mold of the wall of the gas turbine part is formed using the model and is used to cast the wall of the gas turbine part by lost-material casting. A passage is drilled through the resulting casting. This passage extends from the aperture indentation in the first surface through to the second surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.