Manufacturing method of titanium alloy hollow component

A technology of hollow components and manufacturing methods, which is applied in the field of manufacturing titanium alloy thin-walled ribbed hollow parts, can solve the problems of rectifier blade diffusion connection front edge defects, titanium alloy structure changes, and low production efficiency, so as to save raw materials, The effect of high production efficiency and efficiency improvement
CN101786223AActive Publication Date: 2010-07-28BEIJING AERONAUTICAL MFG TECH RES INST
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
BEIJING AERONAUTICAL MFG TECH RES INST
Publication Date
2010-07-28

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Abstract

The invention relates to a manufacturing method of a titanium alloy thin-wall ribbed hollow component. The method comprises the following steps that: a. the titanium alloy hollow component is decomposed into a stressed-skin and ribbed structure form or a stressed-skin ribbed structure form according to the structure features of a hollow component, and an inner sheath and an outer sheath structure forms are determined according to a hollow part of the hollow component; b. the stressed-skin and ribbed or the stressed-skin ribbed structural part is processed or formed according to the decomposed structure forms; c. the inner and the outer sheaths are processed or formed; d. the stressed-skin and ribbed or the stressed-skin ribbed structural part being well processed is assembled with the inner and the outer sheaths, the inner and the outer sheaths are sealed in a welding way and are vacuum encapsulated, and the vacuum degree is 1.0 *10-3Pa; e. the dispersion connection of each structural part is realized through a hot isostatic pressing method; f. surface treatment on each prefabricated structural part is undertaken so as to prepare the hollow structural component. The manufacturing method has high production efficiency; a plurality of components can be prepared through one technical circulation; and the welding rate is more than 95 percent.
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Description

technical field

[0001] The invention belongs to the titanium synthesis technology, and relates to a method for manufacturing a thin-walled ribbed hollow part of a titanium alloy. Background technique

[0002] Superplastic forming / diffusion bonding (SPF / DB) technology has been greatly developed by the needs of the aerospace field and has developed into a mature technology for the manufacture of titanium alloy structures for aircraft and their engines. At present, SPF / DB technology is used to manufacture titanium alloy hollow components, which are divided into two-layer, three-layer, and four-layer hollow components according to the number of layers of the plate. The SPF / DB process mainly includes: material preparation, solder stop flux coating, pocket sealing welding, diffusion bonding and superplastic forming, machining of part blanks after forming, and surface treatment.

[0003] However, with the large-scale production of titanium alloy components by SPF / DB technology, so...

Claims

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