Process for connecting components made of a dispersion-hardened superalloy using the pressure-bonding method
US4722469A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 29, 1986 |
| Grant date | Feb 2, 1988 |
| Priority date | — |
| Expiry date | May 29, 2006 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23K20/24
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
Components made of a dispersion-hardened superalloy are connected together by pressure bonding, the individual parts previously processed at their bonding surfaces only by milling, without fine machining such as grinding, electro-polishing, etc., being subjected before bonding to a heat treatment in the temperature range of between 60.degree. C. and 210.degree. C. below the recrystallization temperature for the purpose of reducing the driving force. During the subsequent coarse-grain heat treatment of the bonded workpiece, no sort of fine crystalline banding occurs in the bonding zone and the strength of the workpiece corresponds to that of the material before bonding.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.