Composite forming method of multifunctional integrated composite material
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A composite material and composite forming technology, applied in additive processing, additive manufacturing, 3D object support structure, etc., can solve the problems of complex integral forming, shorten the manufacturing cycle, ensure the integrity and comprehensive performance, and have strong designability Effect
Active Publication Date: 2019-12-20
ADVANCED MFG TECH CENT CHINA ACAD OF MASCH SCI & TECH +1
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[0005] In view of the integrated forming requirements of large-scale structure, high performance and multi-functional composite material components, the present invention aims to provide a composite forming method of multi-functional integrated composite materials, which uses the transition zone to realize composite weaving and Simultaneous dip forming to solve the problem of integral forming of large, complex structures, high performance composite components
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Embodiment 1
[0032] like Figure 4 As shown in the schematic diagram of the composite material curved surface member, using a composite forming method of a multifunctional integrated composite material of the present invention, the weaving forming steps are as follows:
[0033] ① Use CAD and other software to establish the 3D CAD model of the surface component, and divide the 3D CAD model into functional area 1, functional area 2 and transition area;
[0034] ②Functional area 1 is the basic frame and main part of the component, which is formed by the flexible guiding three-dimensional weaving forming process;
[0035] ③Functional area 2 is mainly a few reinforcing ribs on the outer layer of the component, using continuous fiber 3D printing technology;
[0036] ④ According to the performance requirements of functional area 1 and functional area 2, establish the 3D CAD model of the transition area between functional area 1 and functional area 2;
[0037] ⑤Using the flexible-guided three-di...
Embodiment 2
[0041] like Figure 5 As shown in the schematic diagram of the multi-functional integrated composite material component of the complex structure, using a composite forming method of the multi-functional integrated composite material of the present invention, the weaving and forming steps are as follows:
[0042] ① Establishing a three-dimensional CAD model of the complex structural composite material component, and partitioning the three-dimensional CAD model to obtain functional area 1, functional area 2, functional area 3, transition area 1, and transition area 2;
[0043] ②Using 3D printing technology to manufacture transition zone 1 and transition zone 2 of short fiber reinforced composite materials, the density of short fibers in transition zone 1 is distributed in a gradient along the radial direction, and the short fibers in transition zone 2 are evenly distributed;
[0044] ③ Arrange the guide arrays of functional area 1 and functional area 2 through the guide template...
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Abstract
The invention relates to a composite forming method of a multifunctional integrated composite material. The composite forming method is characterized in that a plurality of functional areas and corresponding transition areas are obtained by partitioning according to different functional requirements of parts; the transition areas are manufactured by adopting a 3D printing or a flexible guide three-dimensional weaving forming process according to the shape requirements of the functional areas, and the transition areas with adjacent functional area guide template information on two sides are obtained; Z-direction reinforcement arrays of the adjacent functional areas are respectively formed on two sides of the transition areas; all functional areas are woven and formed, and a multifunctionalintegrated composite material prefabricated body is obtained; and single matrix material or multiple matrix materials are synchronously impregnated and cured, so that composite forming of the multifunctional integrated composite material is achieved. According to the composite forming method, different quantities and varieties of the reinforcing bodies, the matrix materials and the appropriate forming processes are adopted for the different functional areas to carry out synchronous weaving forming; and meanwhile, the preformed transition areas can isolate the two functional areas on the two sides, the various matrix materials can be simultaneously impregnated, and on the basis of achieving the integral forming of the multifunctional integrated composite material, the respective forming quality, functionality and performance characteristics of the different functional areas are effectively guaranteed.
Description
technical field [0001] The invention relates to the field of composite materials, in particular to a method for composite forming of multifunctional integrated composite materials. Background technique [0002] Composite materials are composed of one or more reinforcements and matrix. Different composite materials can be obtained according to different reinforcements and matrix types. For the same reinforcement and matrix material, due to changes in composition, different composite materials can be obtained. Composite materials, especially for three-dimensional structural composite materials, due to different materials, structures, and forming methods, different composite materials can be obtained, thus exhibiting different performance characteristics. Therefore, in addition to the characteristics of lightweight materials such as high specific strength and high specific stiffness, composite materials also have strong designability, which is also a major advantage of composit...
Claims
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