Additive friction stir methods of repairing substrates
US9862054B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 30, 2015 |
| Grant date | Jan 9, 2018 |
| Priority date | — |
| Expiry date | Nov 30, 2035 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23K20/1295
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
Additive friction stir methods for repairing substrates, coating substrates, fabricating/adding/attaching ribs, joining substrates, stiffening and enhancing structures, surface modification, enhancing surface properties, welding, coating, and extrusion are described. An additive friction stir fabrication method and system is described which may be used to fabricate and join a rib to a substrate or to repair a defect in a substrate through extrusion. The method may be carried out with or without the addition of preformed ribs. One such method involves feeding a friction-stir tool with a consumable filler material such that interaction of the friction-stir tool with the substrate generates plastic deformation at an interface between the friction-stir tool and a substrate to bond the plasticized filler and substrate together and extrude this material through a forming cavity to form a rib joined to the substrate. Further described is a system for fabricating a rib joined to a substrate through extrusion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.