Method and device for producing highly dimensionally accurate flanged half shells

A technology of dimensional accuracy and radius, which is applied in the field of manufacturing and equipment of half-shells with folded edges with high dimensional accuracy, and can solve problems such as high cost, difficulty, and complexity

Active Publication Date: 2010-06-30
THYSSENKRUPP STEEL EURO AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Springback of the half shells makes it more difficult to precisely position the half shells in the lower die for welding the half shells into closed hollow profiles
[0003] Assembly of strongly resilient half-shells in the vehicle structure is complicated due to strong torsion
Alternatively, the sections have to be straightened, which entails higher costs

Method used

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  • Method and device for producing highly dimensionally accurate flanged half shells
  • Method and device for producing highly dimensionally accurate flanged half shells
  • Method and device for producing highly dimensionally accurate flanged half shells

Examples

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Embodiment Construction

[0030] Such as figure 1 The first tool 2 of one embodiment of the kit according to the invention for producing a preformed half-shell from a blank 4 , shown in , comprises a first lower die 6 and an upper deep-drawn die 8 . The general shape of the inner side 10 of the lower mold 6 is similar to the shape of the outer side of the final shaped half-shell to be produced by the kit. However, in the transition region 14 between the body region 16 and the flange region 18 of the lower mold 6 and in the bottom region 12, the shape of the inner side 10 of the lower mold 6 is identical to that of the final shaped half-shell to be produced by the kit. The shape of the outer side is deviated. The inner side 10 of the lower mold 6 thus has an undulating shape in the bottom region 12 . Alternatively, simple concave or convex shapes or other shapes are also conceivable which deviate from the expected shape of the bottom region or of the final molded half-shell. Furthermore, the bead rad...

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PUM

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Abstract

A method for producing highly dimensionally accurate, deep-drawn half shells with a base region (122), a body region (116) and a flange region (118), includes firstly forming a pre-formed half shell (24, 50, 72, 92) from a blank (4) and then shaping the pre-formed half shell (24, 50, 72, 92) into a finally formed half shell (112), wherein the pre-formed half shell has excess blank material due to its geometric shape and wherein, owing to the excess material during the shaping of the pre-formed half shell into its final shape the half shell is compressed into the finally formed half shell by at least one further pressing process. The method requires that the pre-formed half shell has excess blank material in a transition region between the body region and flange region.

Description

technical field [0001] The invention relates to a method for producing high-dimensionally accurate deep-drawn half-shells with a bottom region, a body region and a flange region, wherein first a preformed half-shell is formed from a blank and then the preformed half-shell is The shell is formed into a final shaped half-shell, wherein the preformed half-shell has excess blank material due to its geometry and, during the forming of the preformed half-shell into its final shape, due to this excess blank material, the half-shell Compressed to the final shaped half-shell by at least one further extrusion process. The invention also relates to a tool set for producing high-dimensionally accurate deep-drawn half-shells with a flanged region, having a first tool for producing a preformed half-shell, the first tool comprising a first lower die, and having A second tool for manufacturing the final shaped half-shell, the second tool comprising a second lower mold whose shape substantial...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21D53/88B21D22/02
CPCB21D22/21
Inventor T·弗莱米希K·萨瓦斯L·赫米希
Owner THYSSENKRUPP STEEL EURO AG
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