Induction bonding method and apparatus
US4602139A · kind A · utility
Inventors
Key dates
| Filing date | Jun 24, 1985 |
| Grant date | Jul 22, 1986 |
| Priority date | — |
| Expiry date | Jun 24, 2005 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16B11/006
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A plastic resin between two portions of a sheet metal assembly is heated to a curing temperature to adhere the sheet metal portions together by induction heating of only portions of the sheet metal immediately adjacent the resin. The sheet metal assembly is received between a pair of fixtures with the portions to be heated disposed between a pair of generally opposed induction coils through which an alternating current having a frequency of at least about 5,000 Hz and preferably at least 50,000 Hz is passed for less than fifteen seconds. The fixtures do not rigidly clamp the sheet metal assembly and may be opened and closed to facilitate the insertion and removal of sheet metal assemblies.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.