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Method for curing and forming composite material wing

A composite material, curing molding technology, used in other household appliances, household appliances, household components and other directions, can solve the problems of low strength, high density, low strength of foam materials, etc., to improve molding efficiency, reduce wing weight, reduce The effect of void ratio

Active Publication Date: 2019-04-12
HEFEI INNOVATION RES INST BEIHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, consumer-grade drones are mainly used for personal aerial photography and entertainment, focusing on functional experience and operational convenience, and most of them are rotor drones; with the popularization and application of drones, industrial-grade drones are mainly used to replace or cooperate with artificial intelligence. Complete tasks that are difficult or impossible for human operations in applications in various industries and require high professional skills. Most of them are fixed-wing UAVs. Fixed-wing UAVs have fast flight speed, strong carrying capacity, and high-altitude remote operations, etc. Advantages: When making fixed-wing UAVs, the wings need complex aerodynamic shapes, high strength, low density, and overall production. A new method for making wings is needed. At present, UAV wings are manufactured at home and abroad. The cutting machine is often used to cut the shape. The fixed wing produced has a single shape and a small lift-to-drag ratio. The materials used to make the fixed wing are less selective, and there are problems such as low strength or high density. The single foam material has insufficient strength. High, a single metal material has disadvantages such as heavy weight

Method used

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  • Method for curing and forming composite material wing

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Fill the composite material into the mold, compact the gap, vacuum out the air in the composite material, solidify and mold in the oven and perform post-processing. The specific steps are as follows:

[0020]1. The device for making the wing: the lower mold of the wing 1, the upper mold of the wing 2, the first compactor assembly 3, the first positioning boss 4, the second positioning boss 5, and the second compactor assembly 6. Air outlet valve 7, forming separation layer 8, first limiting groove 14, second limiting groove 15, vacuum tube 16, vacuum pump 17, oven 18. Among them, the lower mold 1 of the wing adopts the lower mold base made of Invar with a streamlined lower curved surface that has been precisely processed in the middle section, and there is a vertical circular through hole on the horizontal planes on the left and right sides of the streamlined lower curved surface, respectively called the lower left The circular through hole and the lower right circular ...

Embodiment 2

[0026] Fill the composite material into the mold, compact the gap, vacuum out the air in the composite material, solidify and mold in the oven and perform post-processing. The specific steps are as follows:

[0027] 1. The device for making the wing: the lower mold of the wing 1, the upper mold of the wing 2, the first compactor assembly 3, the first positioning boss 4, the second positioning boss 5, and the second compactor assembly 6. Air outlet valve 7, forming separation layer 8, first limiting groove 14, second limiting groove 15, vacuum tube 16, vacuum pump 17, oven 18. Among them, the lower mold 1 of the wing adopts the lower mold base made of Invar with a streamlined lower curved surface that has been precisely processed in the middle section, and there is a vertical circular through hole on the horizontal planes on the left and right sides of the streamlined lower curved surface, respectively called the lower left The circular through hole and the lower right circular...

Embodiment 3

[0033] Fill the composite material into the mold, compact the gap, vacuum out the air in the composite material, solidify and mold in the oven and perform post-processing. The specific steps are as follows:

[0034] 1. The device for making the wing: the lower mold of the wing 1, the upper mold of the wing 2, the first compactor assembly 3, the first positioning boss 4, the second positioning boss 5, and the second compactor assembly 6. Air outlet valve 7, forming separation layer 8, first limiting groove 14, second limiting groove 15, vacuum tube 16, vacuum pump 17, oven 18. Among them, the lower mold 1 of the wing adopts the lower mold base made of Invar with a streamlined lower curved surface that has been precisely processed in the middle section, and there is a vertical circular through hole on the horizontal planes on the left and right sides of the streamlined lower curved surface, respectively called the lower left The circular through hole and the lower right circular...

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Abstract

The invention discloses a method for curing and forming a composite material wing, and belongs to unmanned aerial vehicle design and manufacturing technology. The method for curing and forming the composite material wing is characterized in that a mold is filled with composite materials, a gap is compacted, air in the composite materials is extracted in vacuum, curing and forming are carried out in a drying oven, and post-treatment is carried out. According to the method for curing and forming the composite material wing, the composite materials are adopted to reduce the weight of the wing; the curved surface of the mold is formed to improve a lift-drag ratio of the wing; the good heat conduction of invar steel improves the forming efficiency of the thermal process of the composite material wing; a vacuum pumping method is adopted to reduce a void ratio of a composite material wing structure; and a high-temperature forming treatment method is adopted to improve the strength of the composite material wing.

Description

technical field [0001] The invention belongs to the design and manufacture technology of unmanned aerial vehicles, and relates to a method for solidifying and forming composite material wings. Background technique [0002] In recent years, with the rapid development of the industry, the original competitive pattern in the field of domestic drone research and development has gradually been broken, and the market pattern is in the process of great changes and reshaping. Among them, consumer-grade drones are mainly used for personal aerial photography and entertainment, focusing on functional experience and operational convenience, and most of them are rotor drones; with the popularization and application of drones, industrial-grade drones are mainly used to replace or cooperate with artificial intelligence. Complete tasks that are difficult or impossible for human operations in applications in various industries and require high professional skills. Most of them are fixed-wing...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C70/34B29C70/54B29L31/30
CPCB29C70/342B29C70/54B29L2031/3085
Inventor 蒋东升黄俊陈磊
Owner HEFEI INNOVATION RES INST BEIHANG UNIV