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Profile and method of forming same

a technology of profile and forming method, applied in the field of profiles, can solve the problems of reducing the thickness of the profile, limiting the maximum possible reduction of the thickness, and loss of stiffness, and achieve the effect of improving the stiffness of the material-optimized profil

Inactive Publication Date: 2012-08-23
HERMANN FRITZ +6
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The solution improves the stiffness of the profile in thickness-reduced areas, potentially exceeding the stiffness of profiles with constant thickness, while minimizing material usage and structural integrity issues, by compensating for stiffness loss through localized material accumulation.

Problems solved by technology

The drawback of the proposed solution consists in that in order to optimally use the material-saving effect, as large as possible thickness reduction is desired.
The local thinning of the rolling stock, however, can lead to the loss of stiffness, which limits the maximal possible reduction of the thickness.

Method used

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  • Profile and method of forming same
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Embodiment Construction

[0024]A profile 11 according to the present invention, which is shown in FIGS. 1-2, has a C-shaped cross-section with two, extending parallel to each other, side walls 12 and a connection section 13 that connects the two side walls 12 with each other. A bend 17 is provided between each of the side walls 12 and the connection section 13. The free ends 14 of the side walls 12 are bent inward and, thus, have each a bend 18. The side walls 12 partially enclose a hollow space 19. The profile 11 extends along a longitudinal axis 15.

[0025]The profile 11 is formed of a strip-shaped rolling stock with an initial material thickness W and has two thickness-reduced sections 16 in the two side walls 12, respectively. The thickness-reduced sections 16 have a material thickness D that is smaller than the initial material thickness W. On opposite sides of each of the thickness-reduced sections 16, there are provided thickened regions 21, 22, respectively, which are formed by material accumulation a...

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Abstract

A cold-rolling method of forming a profile formed of a strip-shaped rolling stock and having thickness-reduced section (16) and at least one thickened region (21, 22) provided in a region of at least one bend (17, 18) of the profile, includes deforming a strip-shaped rolled metal stock in at least one region for forming the thickness-reduced section, with simultaneous accumulation of the initial material in a region adjacent to the thickness-reduced section so that a thickened region is formed adjacent to the thickness-reduced section, and bending the deformed rolled metal stock section into the profile.

Description

RELATED APPLICATIONS[0001]This application is a continuation of application Ser. No. 12 / 313,893 filed Nov. 24, 2008.BACKGROUND OF THE INVENTION[0002]1. Field of the Invention[0003]The present invention relates to a profile formed of a strip-shaped rolling stock having an initial material thickness and including at least one thickness-reduced section having a thickness that is smaller than the initial material thickness of the rolling stock, and at least one bend. The present invention also relates to a method of forming such a profile.[0004]2. Description of the Prior Art[0005]Profiles, such as used, e.g., in the mounting or installation technology are produced, e.g., from a strip-shaped rolling stock by deformation in a rolling plant. The profiles can have a round, polygonal, or C-shaped cross-section.[0006]In order to reduce the costs of a material, U.S. Pat. No. 4,233,833 suggests, e.g., to reduce thickness of at least one section of the rolling stock so that the material thickne...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): B21B1/08
CPCE04C3/07E04C2003/0473E04C2003/0434E04C2003/0421
Inventor HERMANN, FRITZGEBHARD, JUERGENMERHAR, THOMASWIEDNER, CHRISTOPHJACKEL, FRANKBERTRAM, FRANKKARLE, ERWIN
Owner HERMANN FRITZ
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