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Process for manufacturing V-shaped skin provided with built-in filler

A manufacturing process and filler technology, which is applied in the field of V-shaped skin manufacturing technology with built-in fillers, can solve problems such as being too thin, affecting the overall skin size, and being too small, and achieve the effect of improving processing efficiency and precision

Active Publication Date: 2013-09-04
SHENYANG AIRCRAFT CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This kind of built-in filler usually adopts the method of tooling pressing, but because the size is too small and too thin, the accuracy of the shape cannot be guaranteed, thus affecting the overall skin size

Method used

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  • Process for manufacturing V-shaped skin provided with built-in filler
  • Process for manufacturing V-shaped skin provided with built-in filler
  • Process for manufacturing V-shaped skin provided with built-in filler

Examples

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Effect test

Embodiment Construction

[0018] Such as figure 1 A "V"-shaped hyperbolic structure skin is shown, the outer surface of the skin is the aerodynamic profile surface, and the inner surface is the assembly surface, and its R angle is as follows figure 2 As shown in , there is a non-uniform cross-section filler between the inner and outer skins of the front end of the part, that is, along the length direction of the skin, the thickness of the built-in filler is the largest, and then the thickness gradually decreases to form a non-uniform cross-section filler. . The V-shaped skin manufacturing process with built-in fillers, the steps are as follows:

[0019] 1) Production of hard cover:

[0020] Use 4 layers of glass cloth as the main layer of the cover, and 1 layer of tooling prepreg as the reinforcement layer, and put it into the heating box at 180 ° C for 3 hours;

[0021] 2) Design and manufacture of fillers:

[0022] Use Fibersim software to design the layup of the filler, convert the irregular fi...

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Abstract

The invention relates to a process for manufacturing V-shaped skin provided with built-in filler. According to the technical scheme, four layers of glass cloth are used as main laying layers of a cover plate, one layer of tool prepreg is taken as a reinforcing layer, and the glass cloth and the tool prepreg are placed into a heating box at the temperature of 180 DEG C for 3 hours; a hard cover plate is prepared; Fibersim software is used for designing the laying layers of the filler, an irregular filler solid is converted into a quantitative prepreg laying layers, and the laying layers are prepared according to generated processing data; a female die is used for reversely manufacturing a technological piece; and after the prepreg taken as the outer surface of the skin, each prepreg laying layer taken as filler and the prepreg taken as the inner surface of the skin are sequentially laid on a male die, the hard cover plate is paved for pressing and curing. According to the process for manufacturing the V-shaped skin, an operator can conveniently perform actual stacking working, and sizes and accuracy of the inner surface and the outer surface of a part can be guaranteed.

Description

technical field [0001] The invention is a skin manufacturing method that guarantees "V", "U" and "n" skin-like inner and outer surfaces with built-in fillers. Background technique [0002] The biggest difficulty of "V" shape, "U" shape and "n" shape skin is the accuracy of the R angle at the tip, the thickness around the R angle and the accuracy of the inner and outer surfaces of the skin. In the past similar parts manufacturing In the process, the form of male mold laying, soft mold filling, and female mold curing is usually used. The outer mold surface is guaranteed through the tooling surface of the female mold, and the soft mold is pressurized to complete the curing of the part. However, due to defects such as low precision of the self-made soft mold, poor surface quality, and unstable expansion effect, it is difficult to achieve the accuracy of the size of the R corner of the skin, the thickness of the periphery, and the accuracy of the inner surface. [0003] Such as ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C70/34
Inventor 杨连超张冕范培信
Owner SHENYANG AIRCRAFT CORP
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