Process cover plate with groove structure and preparation method thereof

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, specifically, 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 parts with hollow convex structures. Background technique [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 The manufacturing needs of such ...

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

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