System, method, and apparatus for three-dimensional woven metal preform structural joint
US7790294B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 5, 2006 |
| Grant date | Sep 7, 2010 |
| Priority date | — |
| Expiry date | Jun 27, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/249927
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A three-dimensional, woven metal fiber preform and metal braze matrix forms a high temperature metallic structural joint. The preform is used with a braze alloy matrix to join a structural skin to a flangeless frame. This same basic joint can be used to create large complex structures with very little tooling. The three-dimensional woven metal preform is a flexible element that conforms to match the skin and flangeless frame, thereby avoiding high costs associated with precision fixturing. A high temperature braze metal is used as a matrix for the wire and to join the woven preform to the skin and the frame. The edges of the preform are tapered to a feather edge to avoid stress concentrations and stiffness mismatch.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.