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A preform, a composite part, and a method for processing a composite part

A technology of composite parts and processing methods, applied in textiles, papermaking, textiles, fabrics, etc., can solve the problems of complex process and high cost, and achieve the effects of improving assembly accuracy, saving costs and improving assembly quality

Active Publication Date: 2020-09-11
NANJING FIBERGLASS RES & DESIGN INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Therefore, the technical problem to be solved by the present invention is to overcome the defects of relatively high cost and complex process of composite material products in the prior art, thereby providing a method that effectively reduces the manufacturing cost and processing technology of composite material products while improving the manufacturing accuracy. A kind of prefabricated body, composite component and a kind of processing method of composite component

Method used

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  • A preform, a composite part, and a method for processing a composite part
  • A preform, a composite part, and a method for processing a composite part
  • A preform, a composite part, and a method for processing a composite part

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Embodiment 1

[0056] This embodiment discloses a composite component, such as aerospace equipment or other composite components that require precision manufacturing; wherein the composite component includes: a prefabricated body and a matrix (not shown in the figure), wherein the matrix is ​​used for composite molding of the preformed body ; The matrix in this embodiment is resin, and the prefabricated body is made of reinforcing fibers such as carbon fiber or glass fiber. The final composite part is formed by post-machining the portion of the prefabricated composite part corresponding to the machined fiber structure 21 .

[0057] The prefabricated body in this embodiment is a three-dimensional woven three-dimensional structure, wherein the prefabricated body is a cuboid structure, so the prefabricated composite part is also a cuboid structure. Of course, the prefabricated body can also be other common three-dimensional structures, such as cylinders, polygonal prisms, spheres and the like. ...

Embodiment 2

[0077] The composite component in Example 2 also includes a prefabricated body and a matrix, which is different from Example 1 in that the main fiber structure 11 and the processed fiber structure 21 of this Example 2 can also be formed by independent weaving, that is, separately woven and formed; The layered openings 3 are arranged along the extending direction of the warp yarns. Such as Figure 5 As shown in -6, the longitudinal sections of the main fiber structure 11 and the processed fiber structure 21 along the direction perpendicular to the weft yarn are both straight.

[0078] Among them, such as Figure 5 As shown, the processing fiber structure 21 includes being located on the top of the preform (wherein the top refers to figure 1 - 3) one layer of weft yarn and two layers of warp yarn interwoven therewith, that is, only the main layer opening 3 is set between the processed fiber structure 21 and the main fiber structure 11 .

[0079]By setting the outer contour of...

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Abstract

A prefabricated body, a composite part and a processing method for a composite part, wherein the prefabricated body is used for later processing to form a part, which includes: a main part and at least one processed part, wherein the main part includes a main fiber structure, and the processed part includes Processing fiber structure, a number of layered openings with non-intersecting fibers are arranged between the processing fiber structure and the main fiber structure; the post-processing includes composite molding technology and machining technology carried out successively; the outer surface of the parts There is at least one layered opening between the profile and the main fiber structure, and the outer profile is formed on the outer side of the layered opening close to the surface of the preform.

Description

technical field [0001] The invention relates to the technical field of composite materials, in particular to a prefabricated body, a composite component and a processing method for the composite component. Background technique [0002] Composite materials in the prior art usually form the prefabricated body through the matrix. The prefabricated body of the three-dimensional integral woven structure is used as the reinforced structure of the composite material, which has the characteristics of good structural integrity and strong anti-delamination ability. It is widely used in aerospace and national defense. field is gaining more and more attention. Usually the prefabricated body includes several warp yarns and weft yarns, the weft yarns are parallel to each other without intersecting, the warp yarn direction is perpendicular to the weft yarn direction, and the adjacent warp yarns are interwoven according to certain rules to form a fabric. [0003] In the process of using co...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29B11/06B29B11/16D03D25/00D03D15/00D03D15/267D03D15/275
Inventor 赵谦周海丽张立泉李超郭洪伟
Owner NANJING FIBERGLASS RES & DESIGN INST CO LTD