Method for producing a control arm, and a control arm
AssigneeBenteler Automobiltechnik GmbH
InventorsOliver Mielke, Roald Pedersen, Uwe Koch
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Abstract
In a method for producing a control arm for arrangement on an automobile axle formed as one-piece part from a light-metal extruded profile, a semi-finished product made from a light-metal extruded profile having a Pi-shaped cross-sectional configuration with a bottom web, side webs extending from the bottom web, and legs projecting from the webs is processed by cutting, whereafter bearing seat openings are introduced and sections of the processed semi-finished product are expanded. A control arm produced with the method of the invention for arrangement on an automobile axle is also disclosed.
Claims18
A method for producing a one-piece control arm from a light-metal extruded profile having a longitudinal length for arrangement on an automobile axle, the method comprising the steps of:
- providing a semi-finished product from a light-metal extruded profile with a Pi-shaped cross-sectional configuration along the longitudinal length including a bottom web, side webs extending from the bottom web, and legs projecting from the webs,
- processing the semi-finished product by cutting,
- introducing bearing seat openings, and
- expanding predetermined sections along the longitudinal length of the processed semi-finished product, wherein a distance between legs of an expanded cross-sectional profile in one section along the longitudinal length is greater than a distance between legs in an adjacent section along the longitudinal length of the processed semi-finished product.
A control arm for arrangement on an automobile axle, comprising:
- an extruded profile having a longitudinal length and at least in parts a Pi-shaped cross-sectional configuration with a bottom web, side webs extending as an extension of the bottom web, and legs projecting from the side webs,
- wherein the cross-sectional profile of the control arm is expanded at least in predetermined sections along the longitudinal length and
- wherein a distance between legs of the expanded cross-sectional profile in one section along the longitudinal length is greater than a distance between legs in an adjacent section along the longitudinal length.
Dependencies are inferred from the claim text.