Multifunctional aluminum alloy hollow structure wallboard and forming preparation method thereof

Abstract

The invention belongs to the technical field of aluminum alloy forming machining, and discloses a multifunctional aluminum alloy hollow structure wallboard which is an arc-shaped active hollow cooling wallboard, longitudinal flow channels are formed in the hollow cooling wallboard side by side, necking throttling holes are formed in the two ends of each longitudinal flow channel, the ends of the necking throttling holes correspondingly communicate with annular confluence channels on the two sides of the hollow structure wall plate, and confluence ring frames are arranged on the outer sides of the annular confluence channels on the two sides correspondingly. The multifunctional hollow structure wallboard is formed at a time through the penetration welding and superplastic forming composite technology, the multiple functions of converging, throttling and rigidity increasing can be achieved, the sizes of the throttling holes and the cooling channels can be designed according to requirements, and the design freedom degree is high.

Description

technical field [0001] The invention belongs to the technical field of aluminum alloy forming and processing, and relates to a multi-functional aluminum alloy hollow structure wall plate and a forming preparation method thereof, in particular to the design of a throttling hole, confluence structure design and forming preparation of an active cooling wall plate with integrated structure and function. Background technique [0002] In recent years, in order to meet specific functional requirements, aerospace vehicles have increasingly developed towards high temperature resistance, high strength and rigidity, light weight, and large load. In fact, these four goals are mutually restrictive and contradictory. From the perspective of satisfying high temperature resistance, it is hoped to use high temperature materials. However, high temperature resistant materials generally have a large specificity, which is in contradiction with the goal of light weight and large loading; The perf...

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Problems solved by technology

From the perspective of satisfying high temperature resistance, it is hoped to use high temperature materials. However, high temperature resistant materials generally have a large specificity, which is in contradiction with the goal of light weight and large loading; The performance is poor, and the structural strength and stiffness are difficult to meet the design requirements; from the perspective of large loading, it is hoped that the structure will be light and thin, and the fuel loading space will be large. also restricted

Therefore, in order to meet the four goals of high temperature resistance, high strength and rigidity, light weight, and large load, new design ideas must be found. Traditional structural design thinking is difficult to achieve the four goals of mutual restraint at the same time.

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