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Fasteners with enhanced electrical energy dispersion properties

A fastener and percentage technology, applied in the field of fasteners that disperse electric energy, can solve problems such as expensive fasteners

Active Publication Date: 2020-05-15
THE BOEING CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, such fasteners are usually expensive

Method used

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  • Fasteners with enhanced electrical energy dispersion properties
  • Fasteners with enhanced electrical energy dispersion properties
  • Fasteners with enhanced electrical energy dispersion properties

Examples

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Embodiment Construction

[0152] The drawings and the following description illustrate the invention.

[0153] figure 1 The structure of an exemplary aircraft that may use a fastener according to the present invention is shown. specifically, figure 1 is an icon of the aircraft. Aircraft 100 includes nose 110 , wings 120 , fuselage 130 and tail 140 .

[0154] figure 2 By figure 1 A cross-sectional view of a portion of the wing skin 200 of the aircraft 100 indicated by the view arrow 2 in FIG. Such as figure 2 As shown, the wing skin 200 includes a plurality of composite or metal parts 210 , 220 including holes 230 . Fastener 250 is driven through bore 230 (eg, to form an interference fit) and secured with retainer 240 (eg, a collar swaged thereon or a threaded nut). Fixture 240 may be swaged on fastener 250 at a location where a pintail has been broken off from fastener 250 . Fasteners 250 may comprise pull lock bolts, post lock bolts, HI-LOK brand pins, or any other type of permanent pin typ...

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PUM

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Abstract

The present application relates to fasteners with enhanced electrical energy dispersion properties, providing systems and methods for making the fasteners. One embodiment is a device that includes a fastener. The fastener includes a head, a cylindrical shank and a coating; wherein the cylindrical shank extends from the head and is sized for mating engagement with a corresponding hole, the coating surrounding the shank The circumference is intermittently sprayed and extends axially along the shank, exposing surface irregularities of the shank. The coating exhibits higher lubricity than the surface, and the coating exhibits a higher dielectric withstand voltage than the surface.

Description

technical field [0001] The present disclosure relates to the field of fasteners, and in particular to fasteners that dissipate electrical energy. Background technique [0002] Fasteners are used in the aerospace industry to mechanically join various structural components of aircraft. For example, composite or metal panels forming part of the skin of an aircraft wing may be joined to each other via fasteners. In aircraft construction, it is often desirable to install fasteners with an interference, meaning that the diameter of the fastener is larger than the diameter of the hole that receives the fastener. Interference fit installation of fasteners can facilitate aircraft assembly operations and improve joint performance. Because fasteners are intended to increase the structural strength of an aircraft, it remains desirable to ensure that the act of installing the fastener does not damage underlying structural components of the aircraft. Specifically, if too much force is ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16B35/04F16B35/00F16B33/06B05D1/02B05D7/14
CPCF16B33/06F16B35/00F16B2200/93B05D1/02B05D7/14F16B35/04B64D45/02F16B2200/79F16B33/004F16B4/004F16B5/02B64F5/10
Inventor T·西斯科A·C·鲁芬R·B·坦纳D·温特J·A·威尔克森J·希特
Owner THE BOEING CO