US 2017/0066036 A1Published application

Method for the Production of a Closed Hollow Profile for a Vehicle Axle

AssigneeBenteler Automobiltechnik GmbH

InventorsMichael Brüggenbrock, Thomas Flehmig, Thomas Flöth, Thomas Grosserüschkamp, Norbert Niggemeyer, Andreas Frehn

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Abstract

A method for the production of a closed hollow profile for a vehicle axle including the following steps: a) provision of a board made out of a sheet of metal, wherein the board has at least a length in a longitudinal direction and at least a width in a transverse direction, b) forming of the board, creating an open profile with a channel running in a longitudinal direction of the board, c) forming the lateral surfaces of the board, creating a hollow profile with a circumference and a longitudinal gap and d) joining together the longitudinal gap.

Claims10

Dependent claims

A method for the production of a closed hollow profile for a vehicle axle comprising the following steps:

a) Providing a board made of sheet metal, wherein the board has at least a length (L) in a longitudinal direction and at least a width (B) or a mould contour in a transverse direction, b) Forming the board, wherein an open profile having a channel extending in the longitudinal direction of the board is created, c) Forming the lateral surfaces of the board, wherein a hollow profile having a circumference (U) and having a longitudinal gap is created, and d) Joining of the longitudinal gap,
wherein
the board is formed such that a compressive stress is generated at least in the region of the longitudinal gap.

Dependencies are inferred from the claim text.

Facts

Application: 15/248,362Filed 26 Aug 2016
Priority: DE 10 2015 114 943.57 Sep 2015
Published: 9 Mar 2017
Term ends: Not estimatedThe source records don’t support an estimate.

Classification17 codes

B21D 53/88
Making other particular articles: other parts for vehicles, e.g. cowlings, mudguards
B21D 5/06
Bending sheet metal along straight lines, e.g. to form simple curves: by drawing procedure making use of dies or forming-rollers, e.g. making profiles
B21D 22/02
Shaping without cutting, by stamping, spinning, or deep-drawing: stamping using rigid devices or tools
B21D 22/26
Deep-drawing: for making peculiarly, e.g. irregularly, shaped articles