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Method for producing profile for aircraft wing stringers

A wing and truss technology, applied in the field of producing aircraft wing truss profiles, can solve problems such as product yield and stability, and achieve the effects of improving surface quality, reducing defects in coarse crystal rings, and improving overall performance

Active Publication Date: 2013-12-18
COMAC +1
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  • Summary
  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

However, due to the difficulty of casting 7055 aluminum alloy, there are problems in the yield and stability of its products

Method used

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  • Method for producing profile for aircraft wing stringers
  • Method for producing profile for aircraft wing stringers
  • Method for producing profile for aircraft wing stringers

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Embodiment Construction

[0027] Next, preferred embodiments of the present invention will be specifically described. It should be understood that those skilled in the related art may make various equivalent transformations to the details of the disclosed implementations, and these equivalent transformations are also within the protection scope of the present invention.

[0028] Next, the method for producing the aircraft wing stringer profile of the present invention will be specifically described.

[0029]

[0030] First, calculate the amount of aluminum ingots, intermediate alloys, and pure metal alloys according to the optimization and adjustment plan of the aluminum alloy composition, and melt the raw materials in a furnace such as an intermediate frequency furnace. Among them, the calculation of the composition of the aluminum alloy is calculated based on the data of the composition of the 7055 aluminum alloy. The composition of the 7055 aluminum alloy used in the present invention is specific...

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Abstract

The invention relates to a method for producing an aluminum alloy profile for aircraft wing stringers. The method is characterized by comprising the following steps: determining components of an aluminum alloy and calculating the using quantity of each of raw materials according to the determined components of the aluminum alloy; melting and refining the raw materials to form a molten aluminum alloy material; performing injection molding in a double-spray nozzle injection molding device to form a billet; performing reverse extrusion on the billet in a reverse extrusion machine after the formation of the billet to form the aluminum alloy profile. Through the method disclosed by the invention, the profile which conforms to the requirements of the aircraft wing stringers can be produced by using the aluminum alloy, such as 7055 aluminum alloy.

Description

technical field [0001] The present invention relates to a method of producing profiles for aircraft wing stringers and, more particularly, the invention relates to a method of producing wing stringers from an aluminum alloy such as 7055 aluminum alloy. Background technique [0002] The wing stringer is the key load-bearing structural part of the aircraft wing. Therefore, there are high requirements for the materials selected to manufacture the wing stringer. The indicators involved include comprehensive mechanical properties, fatigue properties, and corrosion resistance. Wait. [0003] 7055 aluminum alloy is currently the strongest alloy among wrought aluminum alloys, so 7055 aluminum alloy is used to produce wing stringers in many occasions. However, if it is used to produce wing stringers, the 7055 aluminum alloy profile needs to have a larger thickness. The main characteristics of 7055 aluminum alloy are high strength, good fracture toughness, strong resistance to fatig...

Claims

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Application Information

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IPC IPC(8): C22F1/053C22C21/10
CPCC22C21/10C22F1/053
Inventor 滕奎张豪段瑞芬章骏李红萍张捷范曦冯永平
Owner COMAC
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