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a ti 2 Alnb-based alloy four-layer hollow structure and its manufacturing method

A manufacturing method and a base alloy technology, which are applied in the Ti2AlNb base alloy four-layer hollow structure and its manufacturing field, can solve the problems of AlNb base alloy diffusion connection poor performance, inconvenient processing, etc., and achieve easy practice, easy processing, improved stability and Yield Effect

Active Publication Date: 2021-04-20
北京达峰成形科技有限公司
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Problems solved by technology

[0005] The invention provides a Ti 2 AlNb-based alloy four-layer hollow structure and its manufacturing method to solve the existing medium-induced Ti 2 AlNb-based alloys have poor diffusion bonding properties and are not easy to process

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  • a ti <sub>2</sub> Alnb-based alloy four-layer hollow structure and its manufacturing method
  • a ti <sub>2</sub> Alnb-based alloy four-layer hollow structure and its manufacturing method
  • a ti <sub>2</sub> Alnb-based alloy four-layer hollow structure and its manufacturing method

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Embodiment Construction

[0032] In order to make the above objects, features and advantages of the present invention more comprehensible, specific implementations of the present invention will be described in detail below in conjunction with the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. However, the present invention can be implemented in many ways other than those described here, and those skilled in the art can make similar improvements without departing from the connotation of the present invention, so the present invention is not limited by the basic implementation disclosed below.

[0033] It should be noted that when an element is referred to as being “fixed” to another element, it can be directly on the other element or there can also be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other e...

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Abstract

The invention belongs to the technical field of thermoforming of lightweight structural parts, and in particular relates to a Ti 2 AlNb-based alloy four-layer hollow structure and its manufacturing method, through the design of the solder stop flux application path of the core plate, the solder stop flux is applied to the side of each core plate unit close to the panel, and the first diffusion connection area is formed at the position where there is no solder stop application , the second diffusion connection area is set on the opposite sides of the two core plate units to connect the two opposite core plate units to form vertical ribs, and the distance between the corresponding diffusion connection areas of the core plate units is designed, using Ti 2 When the AlNb-based alloy four-layer hollow structure is superplastic formed, the core plate unit can be bent and deformed, and the two adjacent vertical ribs formed in the cavity have no connection relationship and are independent of each other. The diffusion connection area is obvious compared with the traditional four-layer structure. Reduced, relieved Ti 2 The problem of poor diffusion bonding performance of AlNb-based alloys improves Ti 2 The stability and yield of the AlNb-based alloy in the preparation process have the advantages of easy processing and easy practice.

Description

technical field [0001] The invention belongs to the technical field of thermoforming of lightweight structural parts, and in particular relates to a Ti 2 AlNb-based alloy four-layer hollow structure and its manufacturing method. Background technique [0002] Aircraft wing and rudder parts are often manufactured using four-layer alloy sheets through superplastic forming / diffusion bonding technology. Solder stopper is applied according to the internal structure required by the parts, and the stacked four-layer structure is sealed and welded, and put into the mold for further processing. Raise the temperature to make it diffuse and form, and then fill the reserved air channel with inert gas to complete the superplastic forming step. Ti 2 AlNb-based alloys have high specific strength, specific stiffness, good oxidation resistance and high temperature creep resistance, and have become the most potential high-temperature structural materials for aerospace. Superplastic forming ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K20/00B23K20/24B21D26/053
CPCB21D26/053B23K20/00B23K20/24
Inventor 杜志豪张凯锋李保永马世榜张聪正
Owner 北京达峰成形科技有限公司
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