Device for extruding hollow and semi-hollow sections
US4169366A · kind A · utility
6Cited by
7References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 6, 1976 |
| Grant date | Oct 2, 1979 |
| Priority date | — |
| Expiry date | Dec 6, 1996 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB21C25/04
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
The invention concerns a device for the extrusion of hollow or semi-hollow sections which are made in particular of a light metal. The device has at least one mandrel head on a mandrel support projecting into a die opening, the mandrel head being a special insert-type mandrel which is held in place on the mandrel support by a connecting device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.