Combustion synthesis to bond metal inserts to C-C composite surfaces
US8574470B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Oct 24, 2008 |
| Grant date | Nov 5, 2013 |
| Priority date | — |
| Expiry date | Mar 29, 2031 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16D2065/1368
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
Method of joining a carbon-carbon composite piece 30 together with a metal insert 20, e.g. in the manufacture of aircraft brake discs 10. The method includes the steps of: providing a carbon-carbon composite piece 30 and a metal insert 20, wherein the metal insert 20 has a surface that is complementary to a surface of said carbon-carbon composite piece 30; providing a layer of a mixture of titanium powder and carbon powder on the first complementary mating surface; arranging the powder layer such that a second complementary mating surface is matched to the complementary mating surface, thereby forming a construct of the carbon-carbon composite piece 30, the powder layer, and the metal insert 20; placing the construct into a press and applying pressure to the construct to press together the carbon-carbon composite piece and the metal insert joined at their complementary surfaces; and applying an electrical current to the powder in the construct to initiate a metal-carbon reaction, thereby bonding the carbon-carbon composite piece 30 together the metal insert 20. The titanium powder particles may be from 25 to 100 microns in diameter, and the carbon powder (e.g., graphite particles) …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.