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Composite material U-shaped long-girder wall plate integral formation method and tool of method

A technology of forming tooling and integral forming, applied in other household appliances, household appliances, household components, etc., can solve the problem of not mentioning the overall curing of reinforced siding

Active Publication Date: 2020-04-28
BEIJING AERONAUTIC SCI & TECH RES INST OF COMAC +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

CN103950209A discloses "U" type composite material long stringer blank preforming device and method" mainly involves the pre-pressing forming process of the laminate, and does not mention the content of the overall curing of the reinforced wall plate

Method used

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  • Composite material U-shaped long-girder wall plate integral formation method and tool of method
  • Composite material U-shaped long-girder wall plate integral formation method and tool of method
  • Composite material U-shaped long-girder wall plate integral formation method and tool of method

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Embodiment

[0076] The present invention involves a total of 5 kinds of intermediate prefabrication structures, and intermediate prefabricated bodies and forming tooling of different configurations are shown in Figure 2- Image 6 shown. In the preform forming process, the preformed intermediate interlayer and the twister strip are combined as required, and then the solidification and forming process is completed under a given temperature and pressure after the overall assembly and packaging of a given forming tool.

[0077] like figure 2 As shown, the I-type intermediate prefab includes a set of intercalation along the web of the girder and two sets of small triangular twist sub-strips.

[0078] like image 3 As shown, the type II intermediate prefab includes two sets of intercalation along the web of the girder and a set of large triangular twist strips.

[0079] like Figure 4 As shown, the type III intermediate prefab includes two sets of intercalation along the web of the girder ...

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Abstract

The invention discloses a composite material U-shaped long-girder wall plate integral formation method and a tool of the method, and belongs to the technical field of aerospace manufacturing. According to the method, it is adopted that stepwise integral assembly is carried out, and solidification is carried out afterward. The method specifically comprises the steps that a middle preform is formedthrough a middle preform forming tool; and integral formation of a long-girder wall plate is completed through a long-girder forming tool in cooperation with a skin forming tool. According to the technical field of the composite material U-shaped long-girder wall plate integral formation method and the tool of the method, while it is guaranteed that the forming quality of a long-girder middle insertion layer and a spill strip filling area is effectively controlled, the assembly and positioning process of a long-girder web is simplified, accurate control over the position, relative to skin, ofthe middle preform is guaranteed, and then it is guaranteed that the long-girder web is positioned accurately, and the dimensional accuracy of the long-girder web is under control; and the composite material U-shaped long-girder wall plate integral formation method and the tool of the method can be suitable for stiffened wall plate structures of various composite materials, and the structural forming quality of composite material parts is improved.

Description

technical field [0001] The invention belongs to the technical field of aviation manufacturing, and in particular relates to a method for integrally forming a composite material "U"-shaped long truss wall plate and its tooling. Background technique [0002] Aircraft composite material "U"-shaped truss panel structure is a new type of reinforced panel configuration. The bottom layer of the truss is completely fitted with the skin, and the reinforced wall is much larger than that of the "T"-shaped truss. The bonding area of ​​the board effectively avoids the problem that the whole panel structure is affected by the degumming of the long stringers, and the co-curing or co-bonding process can be used to complete the overall curing and molding of the panel structure. [0003] In the forming process of the "U"-shaped truss wall panel structure, the forming tooling is very important to effectively transmit the applied pressure, control the delamination and pore defects, and ensure t...

Claims

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Application Information

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IPC IPC(8): B29C70/34B29L31/30
CPCB29C70/342B29L2031/3076
Inventor 丛晶洁李梦琳刘磊温顺达李星杨智勇
Owner BEIJING AERONAUTIC SCI & TECH RES INST OF COMAC
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