Method for producing a crossmember for a vehicle and a crossmember for a vehicle
US11623729B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 28, 2019 |
| Grant date | Apr 11, 2023 |
| Priority date | — |
| Expiry date | Apr 7, 2041 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB64F5/10
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A method for producing a crossmember for a vehicle prepares a workpiece having different thicknesses and a preliminary contour from a metal sheet of uniform thickness by flat roll forming to achieve different local thicknesses. The method cuts out the workpiece, and bending roll forms the workpiece to form a crossmember with a cross section having at least two flanges opposite one another, and a web situated between said flanges. The distance between the flanges is not constant along a longitudinal extent of the crossmember, and a thickness profile at least of the web is determined by the flat roll forming. The local thicknesses and the preliminary contour are such that a geometrical shape of the crossmember corresponds to a predetermined geometrical shape with different thicknesses and heights of the web and differently shaped regions of the flanges along the longitudinal extent of the crossmember.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.