Extrusion die and method for extruding aluminum
US5095734A · kind A · utility
7Cited by
12References
16Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 14, 1990 |
| Grant date | Mar 17, 1992 |
| Priority date | — |
| Expiry date | Dec 14, 2010 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB21C23/142
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
An extrusion die for extrusion of metal has a passageway with a bearing section having parallel bearing surface portions in the direction of extrusion which extend inwardly from an inlet opening a variable distance based upon the size of the gap at such portions and a relief section downstream from said bearing section and having relief surface portions tapering away from said bearing surface portions in the direction of extrusion, said relief surface portions following a straight-line path.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.