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Method for manufacturing a three dimensional frame structure for use as a core structure in a sandwich construction and frame structure manufactured thereby

A frame structure, three-dimensional technology, applied in the field of three-dimensional frame structure of core structure, can solve problems such as inflexibility

Inactive Publication Date: 2009-03-18
AIRBUS OPERATIONS GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0009] However, the three-dimensional grid structure produced according to the above-mentioned printed publication is not related to the above-mentioned disadvantages of the porous material reinforced core structure. not flexible

Method used

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  • Method for manufacturing a three dimensional frame structure for use as a core structure in a sandwich construction and frame structure manufactured thereby
  • Method for manufacturing a three dimensional frame structure for use as a core structure in a sandwich construction and frame structure manufactured thereby
  • Method for manufacturing a three dimensional frame structure for use as a core structure in a sandwich construction and frame structure manufactured thereby

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Embodiment Construction

[0037] figure 1 A two-dimensional grid structure 1 is shown, which in the exemplary embodiment shown in the illustration is made from two sets of linear semi-finished products 2, wherein first the first set 2 is arranged such that the semi-finished products are placed in the first The layers extend parallel and are spaced apart from each other. Next a second group 3 of bar-shaped linear semi-finished products 3 is arranged on the first layer such that the individual bar-shaped linear semi-finished products 3 of the second group are parallel to each other and spaced from each other in a second layer above the first layer 2 Open way to extend. Due to this arrangement of the strip-shaped linear semi-finished products of the first group 2 and the second group 3 , a two-dimensional grid structure 1 is produced, wherein the individual strip-shaped linear semi-finished products in the two layers intersect at defined intersection points 4 .

[0038] Linear semi-finished products may...

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Abstract

The present invention relates to a method for manufacturing a three dimensional frame structure that can be used as a core structure in a sandwich construction. Furthermore, the invention relates to a frame structure for a sandwich construction, which frame structure has been manufactured in accordance with the method according to the invention. In the method, a two dimensional lattice structure (1) is made from bar-shaped linear semifinished products (2, 3), in which structure (1) the semifinished products (2, 3) intersect at defined points of intersection (4); the bar- shaped linear semifinished products (2, 3) are connected at the points of intersection (4) and are softened by locally applying heat to the lattice structure (1) in each case along three non-intersecting (imaginary) straight lines (5, 6).; In order to impart a three dimensional shape to the lattice structure (1) a force (F) is introduced into the lattice structure (1) along the middle one of the (imaginary) straight lines (5, 6) to which heat has been applied, wherein, as a result of deformation of the lattice structure, the introduced force F is deflected into pairs of tensile forces acting in the semifinished products, as a result of which the lattice structure (1) is pulled into a third dimension, along the middle (imaginary) straight line (5, 6) to which heat has been applied.

Description

[0001] References to related applications [0002] This application claims priority to German Patent Application No. 10 2006 008728.3, filed February 24, 2006, and U.S. Provisional Patent Application No. 60 / 776,524, filed February 24, 2006, the disclosures of which are hereby incorporated by reference way into this article. technical field [0003] The invention relates to the technical field of composite materials. In particular, the invention relates to a method for manufacturing a three-dimensional frame structure for use as a core structure in a sandwich construction. Furthermore, the invention relates to a frame structure for a sandwich construction manufactured according to the method according to the invention and to an aircraft comprising structural components in the form of a sandwich construction whose core structure utilizes Made according to the method of the present invention. Background technique [0004] Due to their good ratio of stiffness or strength to d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21D47/00B21F27/10E04C2/34
CPCY02T50/43B29C51/00B32B37/206B29C47/003E04C2/34B21F27/128B29C53/063E04C2002/3488B29D99/001B21D47/04B29C47/0016B29C53/02Y02T50/433B64D1/08B29C47/00B29C47/0023B32B3/28B29D24/002B21D47/005B21F27/10B21D47/00B29C48/00B29C48/06B29C48/09B29C48/12Y02T50/40
Inventor 汉斯-于尔根·韦伯格列戈尔·克里斯蒂安·恩德雷斯
Owner AIRBUS OPERATIONS GMBH
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