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Methods and apparatus for mechanically joining metal components and composite components

A component and composite structure technology, applied in the field of coupling, can solve expensive, inefficient, complex and expensive problems

Active Publication Date: 2012-08-15
THE BOEING CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This process is inefficient and expensive as it is generally equivalent to assembling a structure twice
[0005] The second method also has disadvantages
This again requires disassembly of components to obtain composite parts with larger diameters, which is a complex and expensive process

Method used

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  • Methods and apparatus for mechanically joining metal components and composite components
  • Methods and apparatus for mechanically joining metal components and composite components
  • Methods and apparatus for mechanically joining metal components and composite components

Examples

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Embodiment Construction

[0047]The described embodiments are intended to provide a connection between metallic and composite components using interference fit fasteners. To date, industry standards have utilized interference fit fasteners in conjunction with sleeves when including interference fit fasteners with composite materials. However, as further described herein, current composite formulations provide robustness in this regard, and in the described embodiments no sleeves are used. Specifically, the collected data indicate that if the interference fit fastener is provided with a smooth coating, and the holes in the metallic material and the composite material are aligned, no serious damage will be done to the composite material. This process includes the "pull through" technique where a pulling device is used to "pull" the interference fit fastener through a hole in the material. In contrast to the "push through" technique, there is a counter force on the outlet side of the hole by the pulling ...

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PUM

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Abstract

A method for joining a composite structure and a metallic structure is described. The method includes aligning the composite structure and the metallic structure, drilling a hole through the aligned structures creating an aligned hole, and inserting an interference fit fastener through the aligned hole such that the interference fit fastener engages a cylindrical wall in the composite structure formed by the drilling of the hole.

Description

technical field [0001] The present invention relates generally to couplings created between two or more mechanical components, and more particularly to methods and apparatus for mechanically connecting metallic and composite components. Background technique [0002] Two types of fasteners are used in the field of industry to which this invention pertains, loose fit fasteners and interference fit fasteners. Loose fit fasteners are best exemplified by nuts and bolts. Typically, a hole is drilled through the two parts to be joined, and the diameter of the bolt is smaller than the diameter of the hole being passed through, with a washer and / or nut threaded onto the bolt to achieve the mechanical connection of the two parts. Alternatively, the assembly is done using a swaging process instead of using a nut. [0003] The same process generally follows when using interference fit fasteners. However, the fastener includes a shank portion whose diameter is slightly larger than the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P11/00
CPCF16B5/01F16B5/02F16B4/004B29C65/562B29C65/565B29C65/64B29C65/8207B29C66/02242B29C66/43B29C66/524B29C66/721B29C66/742Y10T428/24008Y10T29/49885Y10T29/49948Y10T29/49947B29C66/1222B29C66/1224B29C66/131B29C66/5326B29C66/1122
Inventor M·A·伍兹J·E·英曼E·E·费克尔特J·R·琼斯E·D·布拉胡特
Owner THE BOEING CO