Apparatus for sizing a workpiece
US5046344A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Jan 19, 1990 |
| Grant date | Sep 10, 1991 |
| Priority date | — |
| Expiry date | Jan 19, 2010 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB21J7/18
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A sizing press has a pair of opposed rotatably supported pressing tools for reducing the width of a flat metal slab. Piston cylinder assemblies rotatably oscillate the pressing tools relative to each other. Each pressing tool has first and second slab-contacting surfaces which extend in different planes. The invented method of this invention includes the steps of moving the pressing tools toward each other against the sides of a metal workpiece and reducing the width of an initial workpiece length. Thereafter, rotating the pressing tools to further reduce the width of only a portion of the initial workpiece length and to reduce the width of an adjacent workpiece length.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.