Patent · US Active

Method for producing hollow profiles having a longitudinal flange

US8505352B2 · kind B2 · utility

3Cited by

7References

9Claims

0Family size

Assignee

ThyssenKrupp Steel Europe AG · DE

Inventors

Thomas Flehmig · Ratingen, DE
Michael Brüggenbrock · Rosendahl, DE
Jörg Gorschlüter · Hamm, DE

Key dates

Filing date	Nov 14, 2012
Grant date	Aug 13, 2013
Priority date	—
Expiry date	Nov 14, 2032

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB21D53/88
WIPO fieldMachine tools
WIPO sectorMechanical engineering

Abstract

The invention relates to a method for producing hollow profile-members having a longitudinal flange, wherein a plate which is arranged between the stamp and the first die being preshaped by introducing a stamp into a first die to form an U-shaped profile-member having a first member and a second member, and wherein the U-shaped profile-member being shaped with a second die to form an O-shaped profile-member having a longitudinal flange. In one aspect, the plate is preshaped to form the U-shaped profile-member, a longitudinal flange member portion is shaped in at least the first member and the longitudinal flange member portion is constructed during the shaping of the U-shaped profile-member to form an O-shaped profile-member substantially in a shape-retaining manner to form a portion of the longitudinal flange.

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