Method of producing a fibre-reinforced metallic circular part
US5544805A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 10, 1995 |
| Grant date | Aug 13, 1996 |
| Priority date | — |
| Expiry date | Feb 10, 2015 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05B2250/141
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A method of producing a fibre-reinforced metallic circular part having a tral hollow, wherein the reinforcing fibres are disposed in the part in the vicinity of the hollow, comprises providing an annular metallic blank with a channel-sectioned groove opening towards the axis of the blank, placing uncompressed concentric layers of the reinforcing fibres and additional metal alternately in the groove followed by a more rigid expansion ring, evacuating the groove and sealing it by a deformable closure member which covers the groove, placing this assembly in an autoclave and subjecting it to a temperature and pressure sufficient to effect superplastic forging of the layers of additional metal whereby the fibre layers and the additional metal layers are compressed and welded to the blank in a single operation, and machining the resulting assembly to obtain the required shaped part.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.