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Curing forming tool and method for honeycomb sandwich structure

A honeycomb interlayer, curing and forming technology, applied in the direction of cardboard articles, etc., can solve the problems of increasing manufacturing cost and production cycle, tearing and crushing of composite skins, and achieving the effect of overcoming large differences in thermal expansion coefficients

Active Publication Date: 2019-02-01
BEIJING SATELLITE MFG FACTORY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, metal templates are mostly used as forming templates. When applied to polygonal box-shaped composite skin-aluminum honeycomb sandwich structures, due to the large difference in thermal expansion coefficient between the metal template and the composite skin, it is easy to occur during the product manufacturing process. Quality problems of tearing or crushing of composite skin
In order to avoid this kind of manufacturing defect, it is necessary to use special metal materials such as Invar whose thermal expansion coefficient is close to that of the composite skin, or to use a composite material laminate consistent with the composite skin to make the forming template, which will greatly increase the manufacturing of the product cost and production cycle

Method used

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  • Curing forming tool and method for honeycomb sandwich structure
  • Curing forming tool and method for honeycomb sandwich structure
  • Curing forming tool and method for honeycomb sandwich structure

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Embodiment Construction

[0058] Below in conjunction with accompanying drawing and specific example the present invention is described in further detail:

[0059] Such as figure 1 As shown, the octagonal box-shaped honeycomb sandwich structure served by the present invention includes a bottom surface 1, a side surface 2 and a functional interface 3, wherein the side surface 2 forms an octagonal structure on the bottom surface 1, and the functional interfaces 3 are all M5 screw holes.

[0060] Such as figure 2 As shown, the main structure of the curing and forming tool includes a forming bottom plate 4 , a forming vertical plate 5 , vertical plate reinforcing ribs 6 and edge baffles 7 .

[0061] Such as image 3 As shown, the solidified forming tooling of the present invention and the octagonal box-shaped honeycomb sandwich structure to be formed are assembled as one through the positioning nail 8 and the standard part fastening nail 9, thereby synchronously realizing the formation of the octagonal ...

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Abstract

The invention relates to a curing forming tool and method for a honeycomb sandwich structure, particularly relates to the curing forming tool and method for a polygonal box-shaped composite material skin-aluminum honeycomb sandwich structure, and belongs to the technical field of curing forming of composite material honeycomb sandwich structures. A forming template is assembled by using compositematerial skin-aluminum honeycomb sandwich structure plates, the problem of large difference in the thermal expansion coefficient between the forming template and service products thereof is solved, and the risk of damage in the product manufacturing process is reduced. The forming template is formed by assembling split forming bottom plates and forming vertical plates, the configuration is simple,the manufacturing cost is low, and the split forming template is easier to separate from the products, so that the risk of damage is reduced when the products are separated from the curing forming tool. The split forming template can be provided with corresponding positioning openings and connecting openings according to different configurations and connecting opening layouts of a honeycomb sandwich structure to be formed, and is assembled and formed, so that recycle of the tool is facilitated.

Description

technical field [0001] The invention relates to a solidification forming tool and method of a honeycomb sandwich structure, in particular to a solidification forming tool and method of a polygonal box-shaped composite material skin-aluminum honeycomb sandwich structure, belonging to the technical field of solidification and forming of a composite material honeycomb sandwich structure . Background technique [0002] Curing and forming tooling is the tooling and fixture required to maintain the shape and positioning of the honeycomb sandwich structure when it is solidified and formed in the autoclave. It generally consists of three parts: forming template, edge baffle and positioning nail. Among them, the forming template is used to control the outline size and structural configuration of the honeycomb sandwich structure, and by designing the positioning connection interface on the forming template, the position accuracy control of various functional interfaces inside the hon...

Claims

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Application Information

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IPC IPC(8): B31D3/00
CPCB31D3/00
Inventor 李莺歌刘羽房怡董丰路
Owner BEIJING SATELLITE MFG FACTORY
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