Composite part and forming method thereof

A technology for composite materials and parts, applied in the field of composite material processing and forming, can solve the problems of misalignment between layers and low strength of composite parts, reduce air bubbles and dry spots, increase shear strength, and resist compression and bending Effects of Strength, Rigidity, and Reliability Improvements

Active Publication Date: 2012-10-03
ADVANCED MFG TECH CENT CHINA ACAD OF MASCH SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a composite material part and its forming method to solve the technical problems that the existing three-dimensional composite material parts are prone to misalignment between layers and the strength of the composite material part is low

Method used

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  • Composite part and forming method thereof
  • Composite part and forming method thereof
  • Composite part and forming method thereof

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Embodiment Construction

[0025] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings, but the present invention can be implemented in many different ways defined and covered by the claims.

[0026] Such as figure 1 As shown, according to one aspect of the present invention, a composite material product is provided, including: a plurality of supporting frame parts 10, these supporting frame parts 10 are arranged according to the shape of the composite material part; braided fibers 30 are arranged layer by layer Between the outer surfaces of the supporting skeleton parts 10 and together with these supporting skeleton parts 10, a prefabricated part matching the shape of the composite material part is formed; the casting matrix 50 is impregnated in the prefabricated part and formed integrally with the prefabricated part after being cured Composite parts.

[0027] In the composite material part that the present invention provides, adopt a p...

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Abstract

The invention provides a composite part and a forming method thereof. The forming method comprises the following steps of: arranging a plurality of support framework pieces according to the shape of the composite part; arranging woven fibers among the external surfaces of the support framework pieces to form a preform of which the shape is matched with that of the composite part; and impregnating a pouring substrate into the manufactured preform, and curing to integrally form the composite part. According to the composite part and the forming method thereof, the whole preform of which the shape is matched with that of the composite part to be processed is formed by weaving the support framework pieces and the woven fibers and subjected to impregnation forming, so that the defects of interlaminar deformation, misplacement and the like are overcome, the interlaminar shear strength, compressive strength and bending strength of a composite are increased, the whole density, rigidity and reliability of the composite part are improved, and the requirements of main bearing structures in aerospace, national defense and military industry and the like are met.

Description

technical field [0001] The invention relates to the technical field of composite material processing and shaping, in particular, to a composite material product. In addition, the present invention also relates to a forming method for the above-mentioned composite material product. Background technique [0002] Composite parts have excellent performance and are increasingly used in high-end fields such as aerospace, national defense, medicine, and automobiles. At present, the common three-dimensional parts of liquid forming composite materials have various structures, but each has its own disadvantages. [0003] In the sandwich structure, the upper and lower panels and the core are connected together by bonding and cementing, which can reduce the weight of the entire part, but cannot form a reliable overall structure, and it is prone to delamination between the core and the panel, reducing the composite material parts. Strength of; [0004] The three-dimensional woven comp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C70/02B29C39/10
CPCB29C39/18B29C39/10B29C70/02B29C70/24
Inventor 单忠德杜伟肖刘丰
Owner ADVANCED MFG TECH CENT CHINA ACAD OF MASCH SCI & TECH
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