Method for producing a bent torsional profile and torsional profile

Patent metadata

Field	Value
Publication number	US-2019217359-A1
Application number	US-201916249060-A
Country	US
Kind code	A1
Filing date	Jan 16, 2019
Priority date	Jan 17, 2018
Publication date	Jul 18, 2019
Grant date	—

Abstract

The invention relates to a method for producing a bent torsional profile comprising the following process steps:
a) provision of a plate made of planar sheet metal, b) reshaping of the plate through the introduction of a bent trough oriented in the longitudinal direction of the plate in a central length portion ( 6 ) of the plate at a distance from the front edges of the plate, forming legs between the trough and the longitudinal edges of the plate, c) reshaping of the legs in such a manner that an open profile is created, d) reshaping of the legs in such a manner that a hollow profile is produced, wherein a longitudinal gap is formed between the two legs over the entire longitudinal extent thereof and wherein an air gap is created between the legs and the trough in the region of the trough, e) joining of the two legs over the entire longitudinal gap.

First claim

What is claimed is:

1 . A method for producing a bent torsional profile comprising the following process steps:
a) provision of a plate made of planar sheet metal, b) reshaping of the plate through the introduction of a bent trough oriented in the longitudinal direction of the plate in a central length portion of the plate at a distance from the front edges of the plate, forming legs between the trough and the longitudinal edges of the plate, c) reshaping of the legs in such a manner that an open profile is created, d) reshaping of the legs in such a manner that a hollow profile is produced, wherein a longitudinal gap is formed between the two legs over the entire longitudinal extent thereof and wherein an air gap is created between the legs and the trough in the region of the trough, e) joining of the two legs over the entire longitudinal gap.

2 . The method as claimed in claim 1 , wherein the longitudinal edges of the plate are provided with a bend which corresponds to the bend of the trough.

3 . The method as claimed in claim 2 , wherein the longitudinal edges of the plate are provided with a bend before the provision or first reshaping of the plate.

4 . The method as claimed in claim 2 , wherein the longitudinal edges of the plate are provided with a bend between process steps b) and c), c) and d) or d) and e).

5 . The method as claimed in claim 1 , wherein the plate is reshaped in process step c) in such a manner that the open profile has a roughly w- or M-shape in the central length portion and a roughly u- or n-shape between the front edges and the trough.

6 . The method as claimed in claim 1 , wherein the plate or the open profile is reshaped in process step d) in such a manner that a butt joint or an overlap joint is produced between the two legs on the longitudinal edges, on which the longitudinal gap is formed, thereby creating the hollow profile.

7 . The method as claimed in claim 1 , wherein the plate or else the open profile is reshaped in process step d) in such a manner that the hollow profile has a roughly V-shape in the central length portion and a roughly O-shape in the portions between the trough and the front edges.

8 . The method as claimed in claim 1 , wherein the introduction of the trough takes place by means of deep-drawing and/or stretch-forming and/or embossing-raising.

9 . The method as claimed in claim 1 , wherein the plate is made of steel, in particular a high-strength or maximum-strength steel.

10 . The method as claimed in claim 1 , wherein the joining of the two legs over the entire longitudinal gap takes place by means of welding, soldering, adhesion or by a mechanical joining process.

11 . A torsional profile produced according to a method as claimed in claim 1 .

Assignees

• Benteler Automobiltechnik Gmbh

Inventors

• Schultz Erik
• Vitalis Rudi
• Seibel Eugen
• Rodrigues Gil

Classifications

• B21D53/88 Primary

  other parts for vehicles, e.g. cowlings, mudguards · CPC title

• B60B2310/318

  by adhesive bonding, e.g. glueing · CPC title

• B60B2310/212

  by drawing · CPC title

• B21D7/06 Primary

  in press brakes or between rams and anvils or abutments; Pliers with forming dies · CPC title

• B60G2202/136

  Twist-beam type arrangement · CPC title