Patent · US Active

Method for forming hollow profiles

US8555693B2 · kind B2 · utility

0Cited by

10References

9Claims

0Family size

Assignee

GKN Driveline International GmbH · DE

Inventors

Ulrich Brochheuser · Neunkirchen, DE
Andreas Gehrke · Siegburg, DE

Key dates

Filing date	Sep 22, 2006
Grant date	Oct 15, 2013
Priority date	—
Expiry date	Mar 10, 2028

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB21K1/12
WIPO fieldMachine tools
WIPO sectorMechanical engineering

Abstract

A method for forming hollow profiles is disclosed. In one exemplary method, a hollow profile is guided through a die in a processing direction and fixed by a mandrel such that at the die, the hollow profile has a material flow velocity in this processing direction (2), in which the method the mandrel has a drawing velocity in the processing direction that is greater than the material flow velocity.

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