Joining of parts via magnetic heating of metal aluminum powders
US8444045B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 7, 2012 |
| Grant date | May 21, 2013 |
| Priority date | — |
| Expiry date | May 7, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31678
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A method of joining at least two parts includes steps of dispersing a joining material comprising a multi-phase magnetic metal-aluminum powder at an interface between the at least two parts to be joined and applying an alternating magnetic field (AMF). The AMF has a magnetic field strength and frequency suitable for inducing magnetic hysteresis losses in the metal-aluminum powder and is applied for a period that raises temperature of the metal-aluminum powder to an exothermic transformation temperature. At the exothermic transformation temperature, the metal-aluminum powder melts and resolidifies as a metal aluminide solid having a non-magnetic configuration.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.