Process for producing hollow metal articles

a hollow body and metal technology, applied in the field of hollow body production, can solve problems such as inability to be produced or realized, and achieve the effect of improving the quality of the hollow body

Inactive Publication Date: 2006-12-07
DAIMLER AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0010] The present invention is concerned with the problem of providing, for a manufacturing process of the above-described t

Problems solved by technology

In this mariner, deformations can be carried out during the internal high pressure deformation, which could

Method used

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  • Process for producing hollow metal articles
  • Process for producing hollow metal articles
  • Process for producing hollow metal articles

Examples

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Embodiment Construction

[0027] According to FIGS. 1 through 8 in metallic hollow body 1 can be produced with the use of the inventive manufacturing process such that first by means of metallic casting a hollow cast part 1 is produced, which subsequently is deformed into the desired hollowed body 1 by means of internal high pressure deformation. In accordance with the invention then the cast part 1′ is so produced with the aid of the metal casting process, that it exhibits a predetermined wall thickness distribution, which is so selected, that the internal high pressure deformation process, with which the cast part 1′ is deformed into the desired hollow body, is improved and in particular is simpler to carry out. Thereby the quality of the hollow body 1 produced with the aid of the process is increased.

[0028] According to FIGS. 1 and 2, the cast part 1′ can have a deformation area 2 which is characterized thereby, that during internal high pressure deformation a deformation of the cast part 1′ takes place ...

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Abstract

The invention concerns a process for producing a metallic hollow body (1),
    • in which a hollow cast part (1′) is produced by metal casting,
    • in which the cast part (1′) is deformed by means of internal high pressure deformation in the hollow body (1).
In order to improve the quality of the hollow body (1), the cast part (1′) is so produced, that it has a wall thickness distribution supporting or simplifying the internal high pressure deformation.

Description

BACKGROUND OF THE INVENTION [0001] 1. Field of the Invention [0002] The present invention concerns a process for producing metallic hollow bodies of the type set forth in the pre-characterizing portion of the main claim. [0003] 2. Description of the Related Art [0004] DE 10244338A1 discloses a machining operation for hollow cast parts, wherein the cast part is acted upon with high pressure using an internal high pressure deforming tool. By internal high pressure deforming, the cast part is normed, in order to correct any warping produced during casting. [0005] DE10125121A1 discloses an exhaust pipe bender, of which the individual parts are produced using deep drawing techniques. [0006] DE19847876A1 discloses a shock absorber strut carrier or spring stit carrier, produced as a cast part. [0007] U.S. Pat. No. 4,571,969 discloses a process for autofretage of a thick wall hydraulic cylinder by means of internal high pressure deformation. [0008] EP0952067A2 discloses an automobile body c...

Claims

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Application Information

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IPC IPC(8): B21D51/00B21D26/033
CPCB21D26/033
Inventor STORSBERG, LUTZWORTBERG, DANIEL
Owner DAIMLER AG
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