Uber-cooled turbine section component made by additive manufacturing
US9393620B2 · kind B2 · utility
6Cited by
10References
17Claims
0Family size
Assignee
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Key dates
| Filing date | Dec 14, 2012 |
| Grant date | Jul 19, 2016 |
| Priority date | — |
| Expiry date | May 9, 2035 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49341
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A gas turbine airfoil having internal cooling passages is formed by additive manufacturing. Layers of superalloy powder are fused by an energy beam using a two-dimensional pattern providing unmelted areas forming passageways therein. Layers of the powder are added and fused using sufficient two-dimensional patterns to form the entire airfoil with the desired pattern of internal cooling passages. After completion of the formation of the airfoil, it may be hot isostatic pressed, directionally recrystallized, bond coated, and covered with a thermal barrier layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.