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A preparation method and application method of a composite material skin craft dummy

A composite material and composite material layer technology, which is applied in the field of preparation of process dummy parts, can solve problems such as being unfavorable for low-cost manufacturing of composite material skins, time-consuming and labor-intensive manufacturing, complex profiles, etc., and achieve reliable connection strength and structural form. Stable, easy-to-scratch finish

Active Publication Date: 2019-11-15
AVIC BEIJING AERONAUTICAL MFG TECH RES INST +1
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  • Application Information

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Problems solved by technology

Rigid process cover plate steel forming mold has complex profile, time-consuming and labor-intensive manufacturing, and high cost, so it is very unfavorable for low-cost manufacturing of composite skin

Method used

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  • A preparation method and application method of a composite material skin craft dummy

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Embodiment Construction

[0011] see figure 1 , a preparation method and application method of a process dummy of a composite material skin, characterized in that the process dummy comprises a composite material laminate 1 and an atomic ash layer 2, and the composite material laminate 1 is made of directional discontinuous prepreg Material preparation, the outer surface 4 of the composite material laminate is connected with the inner surface 6 of the putty layer, the inner shape surface 3 of the composite material laminate and the outer shape surface 5 of the putty layer constitute the inner surface and the outer surface of the process dummy respectively, And the surface structures of the inner and outer surfaces of the craft dummy are the same as those of the composite skin. The preparation method is as follows: (1) With the help of the composite material skin forming mold, according to the contour line of the composite material skin layer placed on the forming mold by the laser projection equipment, ...

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Abstract

The invention belongs to the technical field of manufacturing of composites, and relates to a preparation method and an application form of a technological fake of composite skin. The technological fake of composite skin comprises a composite laminate and a putty layer, wherein the composite laminate is prepared from a directed discontinuous prepreg; an outer molded surface of the composite laminate is connected with an inner molded surface of the putty layer; an inner molded surface of the composite laminate and an outer molded surface of the putty layer form an inner molded surface and an outer molded surface of the technological fake; and molded surface structural forms of the inner molded surface and the outer molded surface are the same as those of composite skin. The preparation method of the technological fake of composite skin comprises the steps that firstly, the composite laminate is manufactured, then, sand blasting treatment is carried out on the outer molded surface of the composite laminate, the putty layer is formed on the outer molded surface of the composite laminate through blade coating, and finally, the technological fake of composite skin is obtained. According to the preparation method, the outer molded surface of the technological fake of composite skin is adopted as a sub molded surface for forming a composite skin rigid technological cover plate.

Description

technical field [0001] The invention belongs to the technical field of composite material manufacturing, and relates to a preparation method and an application mode of a craft dummy of a composite material skin. Background technique [0002] Composite material or fiber-reinforced rubber and other rigid process cover plates have a fixed forming surface and high surface forming quality, and are widely used in the preparation of composite skins, especially special-shaped skins. In order to manufacture the above-mentioned rigid process cover plate, the traditional method is to separately manufacture the steel forming mold of the rigid process cover plate, and use the steel forming mold to prepare the rigid process cover plate. The surface of the rigid process cover steel forming mold is complex, time-consuming, laborious and expensive to manufacture, so it is very unfavorable for low-cost manufacturing of composite skins. For this reason, to get rid of the need to separately ma...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C33/38B29C70/54B24C1/00
CPCB24C1/00B29C33/3842B29C70/54
Inventor 刘立朋崔海超陈蔚翟全胜
Owner AVIC BEIJING AERONAUTICAL MFG TECH RES INST
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