Forming method of composite material part with variable cross-section closed cavity

A composite material and molding method technology, applied in the field of composite material molding, can solve problems such as the inability to guarantee the pressure of the inner and outer cavity and affect the quality of the product, and achieve the effects of good product quality stability and strong manufacturability and practicability

Inactive Publication Date: 2013-07-24
HARBIN
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Problems solved by technology

[0002] During the molding process of all-composite material pipe beam structural parts, for the closed cavity structure with variable cross-section, vacuum bag-autoclave, silicon capsule, Yin-yang combination mold and other pressure methods alone cannot ensure that the inner and outer cavity are fully pressurized and can be demolded smoothly. , seriously affecting product quality

Method used

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  • Forming method of composite material part with variable cross-section closed cavity
  • Forming method of composite material part with variable cross-section closed cavity

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Experimental program
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Embodiment Construction

[0018] Due to the variable cross-section closed cavity structure area, pipe beam structure area, and wall plate structure area in the product structure, silicon capsule pressurization, mold pressurization, foam pressurization and vacuum bag pressurization are used for molding for different areas, so that the product Different structural parts realize co-curing molding.

[0019] see figure 1 , figure 1 Explanation of the principle of using silicone rubber pressurization and mold pressurization for the pipe beam: tooling cover plate 1 tooling layer 2 silicone rubber 3 pipe beam structure products 4

[0020] join figure 2 , figure 2 Explanation of the principle of using foam pressurization and mold pressurization for the variable cross-section closed cavity area, tooling cover plate 1 tooling pavement layer 2 foam 3 variable cross-section closed cavity structure product 4

[0021] The molding method is,

[0022] 1) Mold design and manufacture:

[0023] ●Design: The moldin...

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Abstract

The invention belongs to a forming technology of a composite material and relates to a forming method applicable to a composite material part with a variable cross-section closed cavity. The forming method adopts a composite material forming process combining with various pressurizing modes and can be used for realizing a curing forming method of the composite material part which simultaneously provided with the variable cross-section closed cavity and a tubular beam structure. The forming method adopts internal and external pressurizing modes for pressurization in the curing process of a product, respectively adopts different pressurizing modes for forming according to different structure regions of the product, finally the product is cured by adopting a mixed pressurizing mode, and the stability of the product quality is good. For the products with relatively complex structures, the forming method is strong in manufacturability and feasibility, and can be used for realizing the integrated forming of the composite material products with various structure modes.

Description

technical field [0001] The invention belongs to composite material molding technology, and relates to a molding method suitable for variable cross-section closed cavity composite material parts. Background technique [0002] During the forming process of all-composite material pipe beam structural parts, for the closed cavity structure with variable cross-section, vacuum bag-autoclave, silicon capsule, Yin-yang combined mold and other pressure methods alone cannot ensure that all the inner and outer cavities are pressurized and can be demolded smoothly. , seriously affecting product quality. Invention content: [0003] The purpose of the present invention is to provide a molding method of a variable cross-section closed cavity composite material that can ensure all the inner and outer cavities are pressurized and can be demolded smoothly. Technical solution of the present invention: [0004] 1) Mold manufacturing [0005] According to the digital model of the product st...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C70/44
Inventor 岳云江康健张莉
Owner HARBIN
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