Process for extruding a composite section, a die for this purpose, and the resultant composite section
US4290290A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 9, 1979 |
| Grant date | Sep 22, 1981 |
| Priority date | — |
| Expiry date | Nov 9, 1999 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23K9/232
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A composite section comprises a beam-like section which may in particular be made of a light-weight metal, and a facing of at least a part of at least one face of the beam-like section made of another metal. The beam-like part is produced by extruding a billet of metal through a die, and at the same time the facing strip is fed through the shape-giving opening in the die. Inside the die there is provided at least one moving face which may e.g. be in the form of a wheel, over which the facing strip passes in being fed to the die opening. Also the strip can be deformed during feeding or extrusion to provide a variety of shapes. The wheels can be shaped to effect the shaping of the strip. They also reduce friction and wear in the die. Measures are taken to allow easy access to such wheels for ease of repair or for changing the wheels.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.