Manufacture of flow optimized stiffener for improving rigidity of ducting
US7607225B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 2, 2005 |
| Grant date | Oct 27, 2009 |
| Priority date | — |
| Expiry date | Sep 2, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49879
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A method for the direct manufacture of aerospace duct elements is provided comprising executing a single build run on a build chamber using direct fabrication technology to generate at least one duct section. The at least one duct section is generated by forming a plurality of partial cylinder duct segments orientated within the build chamber in a nested arrangement during the single build run, and assembling at least two of the partial cylinder duct segments to form the duct section. During the single build run a plurality of stiffening protrusions are formed on each of the partial cylinder duct segments to improve duct rigidity and to modify flow through the duct section.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.