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Process cover plate with groove structure and manufacturing method for process cover plate

A technology of cover plate and process, which is applied in the field of manufacturing aircraft metal adhesive components, and can solve problems such as large local stress, stress concentration, and too thin adhesive film thickness

Active Publication Date: 2018-12-11
AVIC SAC COMML AIRCRAFT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The process cover is a relatively common auxiliary forming tool in the manufacture of adhesive components. At present, the process cover used in the technical field of aircraft metal bonding is mainly used to improve or enhance the pressure of the R-angle area or the special-shaped area. Conduction and pressure distribution. However, for metal adhesive components with a hollow convex structure, the difficulty in forming is that the stress is concentrated in a narrow area, resulting in excessive local stress and too thin thickness of the adhesive film. The existing process cover plate Unable to meet the manufacturing needs of such bonded components

Method used

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  • Process cover plate with groove structure and manufacturing method for process cover plate
  • Process cover plate with groove structure and manufacturing method for process cover plate
  • Process cover plate with groove structure and manufacturing method for process cover plate

Examples

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Embodiment Construction

[0026] like figure 1 and figure 2 As shown in the figure, a groove structure process cover plate is composed of four parts: a filling layer, a shell layer, a flat plate layer and an R-angle filling body; A shell layer is arranged on the surface, and the shell layer is composed of several layers of glass fiber woven prepreg; a flat plate layer is arranged on the lower surface of the shell layer, and the flat layer is composed of a bottom layer of unvulcanized rubber and several upper layers of glass fiber woven prepreg The bottom surface of the process cover is provided with several grooves, and the position of the grooves corresponds to the position of the hollow protrusion of the glued member. The flat layer is broken at the groove, and the shell layer is arched upward at the groove. A convex structure is formed; the R-angle filler is formed by a combination of unvulcanized rubber steps, and is supported at the transition fillet between the shell layer and the flat plate la...

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Abstract

The invention relates to a process cover plate with a groove structure. The structure of the process cover plate is characterized in that a filling layer is formed by superposing a plurality of unvulcanized rubber layers, wherein a housing layer is arranged on the lower surface of the filling layer; the housing layer is formed by combining a plurality of layers of glass fiber knitted prepreg; a flat plate layer is arranged on the lower surface of the housing layer; the flat plate layer is composed of one layer of unvulcanized rubber and a plurality of layers of glass fiber knitted unvulcanizedrubber on the upper part; a plurality of grooves are formed in the bottom surface of the process cover plate; the flat plate layer is broken at the grooves; the housing layer is upwards arched at thegrooves to form a bulge structure; a R-corner filling body is combined and formed by unvulcanized rubber, and is supported on a transition round corner between the housing layer and the flat plate layer. The process cover plate can effectively attenuate and disperse uniform load integrated in a hollow area of a part during the forming process, eliminates stress focus, guarantees effective pressing of all matched areas, and finally obtains a glued-joint film layer with uniform distribution and thickness meeting the standard requirements.

Description

technical field [0001] The invention relates to the technical field of manufacturing aircraft metal glued components, in particular to a composite material process cover plate with a groove structure and a preparation method, which are applied to the thickness control of the glue layer of metal glued components of hollow convex structure. Background technique [0002] The process cover plate is a relatively common auxiliary forming tool in the manufacture of glued components. At present, the process cover plate used in the technical field of aircraft metal bonding manufacturing technology is mainly used to improve or enhance the pressure of the R-angle area or the special-shaped area. Conduction and pressure distribution, however, for metal bonding components with hollow convex structures, the difficulty in forming is that the stress is concentrated in a small area, resulting in excessive local stress and thin film thickness. The manufacturing needs of such glued components ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C70/34B64C1/14B29L31/30
CPCB29C70/342B29L2031/3076B64C1/14Y02T50/40
Inventor 卢政斌李洪哲郭守玉林楠卢刚杨波
Owner AVIC SAC COMML AIRCRAFT
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