Method and tool for calibration of a hollow profile component produced by extrusion for automobile manufacturing
AssigneesAudi AG, Benteler Automobiltechnik GmbH
InventorsMatthias GOTTHELF, Esref CIKLAKARSLI, Erik Povl MARCUSSEN
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Abstract
A method for the calibration or end sizing of a hollow profile component produced by extrusion for automobile manufacturing. The hollow profile component is inserted into the cavity of an opened press tool and closing the press tool. Expandable mandrels are introduced into the open profile ends of the hollow profile component. The hollow profile component is calibrated or end-sized by applying force simultaneously on the outside and on the inside. The expandable mandrels are retracted, opening of the press tool, and removing of the hollow profile component.
Claims10
A method for the calibration or end sizing of a hollow profile component produced by extrusion for automobile manufacturing, comprising the steps:
- inserting the hollow profile component into the cavity of an opened press tool and closing the press tool;
- introducing expandable mandrels into the open profile ends of the hollow profile component;
- calibrating or end sizing of the hollow profile component by applying force simultaneously on the outside and on the inside;
- and
- retracting of the expandable mandrels, opening of the press tool, and removing of the hollow profile component.
A press tool for the calibration or end sizing of an extruded hollow profile component for automobile manufacture, comprising:
- a bottom tool part and a top tool part, which can move relatively to each other and which have a cavity for taking up the hollow profile component;
- and
- two expandable mandrels, which can be introduced into open profile ends of the hollow profile component taken up in the cavity, and which can then be expanded.
A method for producing a hollow profile component for automobile manufacturing, comprising the steps:
- creating a hollow profile by extrusion;
- creating the hollow profile component by separating a piece from the hollow profile;
- and
- calibrating or end sizing of the hollow profile component with a method and/or a press tool according to one of the preceding claims.
Dependencies are inferred from the claim text.