Patent · US Active

Method of manufacturing a tubular structural part, and tubular structural part

US9248490B2 · kind B2 · utility

1Cited by

10References

5Claims

0Family size

Assignee

BENTELER AUTOMOBILTECHNIK GMBH · DE

Inventors

Holger Diersmann · Westerkappeln, DE
Hans-Jürgen Knaup · Bad Lippspringe, DE
Rafael Garcia Gomez · Paderborn, DE

Key dates

Filing date	Jul 19, 2012
Grant date	Feb 2, 2016
Priority date	—
Expiry date	Jul 19, 2032

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T29/49622
WIPO fieldMachine tools
WIPO sectorMechanical engineering

Abstract

In a method of making a tubular structural part for a motor vehicle, a metal plate is contoured and preformed in at least one shaping step into a tubular body. Subsequently, the tubular body is end-formed into the structural part by internal high-pressure application while free contact regions snugly bear upon one another. The structural part is at least partially heated and quenched in a holding tool acted upon with a coolant.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.