Interlaminar reinforcement continuous fiber composite material additive manufacturing method

Abstract

The invention relates to an interlaminar reinforcement continuous fiber composite material additive manufacturing method, and belongs to the cross field of composite materials and additive manufacturing. The method includes the steps that a CAD model of a continuous fiber reinforced composite material product is built, matching data, model outline data and scanning route data of continuous fibers and a base of the product are obtained, a wire is pulled by a wire guide mechanism to be guided into a printing spraying nozzle, the printing spraying nozzle is controlled through CAD driving to conduct continuous fiber composite material printing on a working table, interlaminar short fiber paving is carried out through an interlaminar assisting spraying nozzle, a compaction mechanism is adopted for compacting printing layers, and additive manufacturing of the continuous fiber reinforced composite material product is achieved. By means of the interlaminar reinforcement continuous fiber composite material additive manufacturing method, the manufacturing efficiency and the fiber / resin interface bonding strength of a continuous fiber reinforced composite material are improved, the layer and layer bonding performance of the continuous fiber reinforced composite material is achieved through short fiber paving between the printing layers, interlaminar reinforcement of the additive manufacturing composite material is achieved, the material fiber volume fraction is improved, and the high-performance and high-efficiency additive manufacturing of the continuous fiber reinforced composite material is achieved.

Description

technical field [0001] The invention relates to an interlayer reinforced continuous fiber composite material additive manufacturing method, which belongs to the cross technical field of composite material and additive manufacturing. Background technique [0002] As a new generation of advanced composite materials, continuous fiber reinforced composite materials have much higher specific stiffness and specific strength than metal materials, and also have material properties such as good thermal stability and strong designability, so they are widely used in aerospace vehicles , ships, medical and other high-tech fields. The traditional composite material manufacturing technology is mainly composed of two processes: prefabricated body manufacturing and matrix infiltration and curing. In order to achieve good infiltration of the matrix to the preformed body, thereby effectively improving the high strength and high modulus of continuous fiber reinforced composite parts, the tradi...

AI Technical Summary

Problems solved by technology

However, the additive manufacturing method for continuous fiber-reinforced composite materials is not perfect, especially for the development of high-performance composite material parts. The existing additive manufacturing methods for continuous fiber-reinforced composite materials have not yet solved the problem of low interlayer strength of composite materials.

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