Patent · US Active

Method for producing a crossmember for a vehicle and a crossmember for a vehicle

US11623729B2 · kind B2 · utility

0Cited by
10References
9Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMay 28, 2019
Grant dateApr 11, 2023
Priority date
Expiry dateApr 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.