Apparatus and method for the continuous and progressive shaping of metal strips to give a profile with longitudinally varying cross section
US10035179B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Oct 21, 2015 |
| Grant date | Jul 31, 2018 |
| Priority date | — |
| Expiry date | Oct 21, 2035 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23K31/027
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
Disclosed herein is an apparatus for the continuous and progressive shaping of metal strips to produce a formed metal strip whose cross sectional dimensions vary along a longitudinal axis thereof. The apparatus includes a device for shaping the metal strips, wherein the device has at least one tool set with at least two rotatably mounted and mutually associated tools, wherein the tools each have a pressure face disposed along an outer circumference thereof with a contour configured to shape the workpieces. The contour of the pressure face of at least one tool is not axially symmetric. In order to be able to cost-effectively produce workpieces or profiles with a variable cross section, in particular profiles with a closed cross section, it is proposed that the contours of the pressure faces of all tools, but at least of one tool set, are concave in order to generate a profile having a closed cross section.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.