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Method and tool for calibration of hollow profile component produced by extrusion for automobile manufacturing

A technology of extrusion processing of hollow profiles, applied in the direction of manufacturing tools, forming tools, vehicle parts, etc., can solve the problems of hollow profile size and shape deviation, and achieve the effect of short cycle time and small shape error

Pending Publication Date: 2019-03-29
AUDI AG +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, extruded hollow profiles naturally have size and shape deviations. In order to comply with the error requirements before further processing, a finishing process or finishing process is required.

Method used

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  • Method and tool for calibration of hollow profile component produced by extrusion for automobile manufacturing
  • Method and tool for calibration of hollow profile component produced by extrusion for automobile manufacturing

Examples

Experimental program
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Embodiment Construction

[0049] figure 1 The hollow profile member 100 shown in the figure is composed of an aluminum rectangular profile that is extruded. The hollow profile component 100 can have an axial length of, for example, 1000 mm and be assembled as a longitudinal beam or a cross beam in a motor vehicle, for example as a component of the body space frame structure. Based on the manufacturing method of extrusion processing, the hollow profile member 100 may have size and shape deviations, such as twisted or bent forms, and thus need to be finished before assembly, especially in view of the joining technology used.

[0050] figure 2 Shown is a stamping die 200 for finishing the hollow profile member 100 of the present invention. The stamping die 200 installed in the forming press includes a lower die 210 configured as a forming die. The figure only shows the working surface of the lower die and the upper die 220 configured as a die. The upper die is also only Show its active surface. The struc...

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PUM

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Abstract

The present invention relates to a method for the calibration or end sizing of a hollow profile component (100) produced by extrusion for automobile manufacturing. The method comprises the following steps that: a hollow profile component (100) is inserted into the cavity of an opened press tool (200) and closing the press tool (200); expandable mandrels (230, 240) are introduced into the open profile ends (130) of the hollow profile component (100); the hollow profile component (100) is calibrated or end-sized by applying force simultaneously on the outside and on the inside; and the expandable mandrels (230, 240) are retracted to open the press tool (200) and remove the hollow profile component (100). The present invention further relates to a press tool (200) and a method for manufacturing a hollow profile component (100).

Description

Technical field [0001] The invention relates to a method and a mold for finishing hollow profile members for automobile manufacturing produced by extrusion processing. [0002] The invention also relates to a method for manufacturing a hollow section member for automobile manufacturing. Background technique [0003] The hollow profile or cavity profile used in automobile or vehicle manufacturing can be manufactured by extrusion processing. The extrusion manufacturing method is especially suitable for aluminum profiles. However, the hollow profile processed by extrusion naturally has size and shape deviations. In order to comply with the error requirements before further processing, a finishing process or a finishing process is required. [0004] EP 1 534 443 B1 describes, for example, in the field of PKW manufacturing, a method for producing structural parts from extruded profiles, especially aluminum. In order to reduce the cost while achieving extremely high accuracy in the cros...

Claims

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Application Information

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IPC IPC(8): B21D3/10B21D41/02
CPCB21D3/10B21D41/028B21C37/158B21C37/30B21D22/025B21D37/10B21D41/04B21C23/085B21D53/88B21C23/002
Inventor M·哥特赫夫E·西克莱卡斯利E·P·玛尔库森
Owner AUDI AG
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