Device for use in explosive welding of two overlapping tubular or annular elements
US4880153A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 22, 1988 |
| Grant date | Nov 14, 1989 |
| Priority date | — |
| Expiry date | Apr 22, 2008 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23K20/085
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A device for use in explosive welding of two overlapping tubular or annular elements (1, 2) by an explosive charge (3). The explosive charge (3) is located in the hold of the one element (1) in front of the overlapping portion of the other element (2). The elements (1, 2) are surrounded by an annular dolly comprising a plurality of segments (4) which are individually radially movable and associated with braking means. Each segment (4) is provided with a plurality of frictional surfaces (5, 6, 7, 8) which extend radially relative to the dolly and are adjustably forcable against opposed frictional surfaces on a supporting means (9), which bridges the dolly. A device according to the invention absorbs energy efficiently and can be re-used several times without requiring adjustment or replacement of parts incorporated therein.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.