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Methods and devices for supporting of variety of different pre-cured composite stringers

A pre-cured, stringer technology used in transportation and packaging, applications, aircraft assembly, etc., that can solve problems such as limiting production volume and slowing down processing speed

Pending Publication Date: 2021-08-27
THE BOEING CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This support for uncured stringers is typically provided by either the forming tool or the curing tool, which limits the throughput of either of these tools and slows down overall processing

Method used

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  • Methods and devices for supporting of variety of different pre-cured composite stringers
  • Methods and devices for supporting of variety of different pre-cured composite stringers
  • Methods and devices for supporting of variety of different pre-cured composite stringers

Examples

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Embodiment Construction

[0034] In the following description, numerous specific details are set forth in order to provide a thorough understanding of presented concepts. In some instances, the presented concepts are practiced without some or all of these specific details. In other instances, well known process operations have not been described in detail so as not to unnecessarily obscure the described concepts. While some concepts will be described in conjunction with specific examples, it should be understood that these examples are not intended to be limiting.

[0035] introduce

[0036] Composite stringers and other shaped composite structures are used in many applications, such as aircraft, land vehicles, and the like. The manufacture of these composite structures involves various handling and machining of the pre-cured formed parts, such as trimming, inspection, bladder installation, and the like. Before curing, these formed parts require adequate support to maintain their shape, which can be...

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PUM

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Abstract

The invention relates to methods and devices for supporting of variety of different pre-cured composite stringers. Provided are methods and devices for supporting of variety of different pre-cured composite stringers after forming and prior to curing. A post-forming processing device comprises a base with a channel for receiving hat portions of different stringers. The device also comprises a support structure, at least partially extending within the channel. The support structure is configured to conform to different hat portions and to retain the shape of these hat portions. For example, the support structure is made from a flexible material, which conforms to any shape variations. In some examples, the support structure is made from a jamming material that is reshaped together with each of the pre-cured composite stringers. A post-forming processing device is used for supporting different pre-cured composite stringers while various operations are performed on these stringers, such as stringer trimming, inspection, installation of bladders and noodles, and the like.

Description

technical field [0001] The present invention relates to methods and apparatus for supporting a variety of different precured composite stringers. Background technique [0002] Aircraft utilize various parts such as stringers to resist bending, torsion, shear and direct loads. Stringers are usually made from lightweight composite materials using eg tapes or fabrics with fibers embedded in a resin matrix. For example, a composite layup is machined in a forming tool to define the shape. The formed part is then transferred to a curing unit for curing. Stringers need adequate support to hold their shape until curing is complete. This shape is often defined by in-plane and / or out-of-plane bending, in addition to a cross-sectional profile that varies from one stringer to another. In addition, the formed stringers may undergo various operations, such as trimming, inspection, installation of additional parts, etc., prior to curing. This support for uncured stringers is typically...

Claims

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Application Information

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IPC IPC(8): B64C1/06B64F5/10
CPCB29C31/008B29B13/00B29C31/00B29C70/00B29K2105/06B64C1/064B64F5/10B29C70/54B29D99/0003B29D99/0014Y02T50/40B29C70/446B29C70/541B29L2031/3082B29L2031/3085B64C1/12B64C3/182B64C3/26B64C2001/0072B29C70/44
Inventor S·J·克努森J·R·肯德尔R·S·苏里亚拉奇
Owner THE BOEING CO