Rib titanium alloy hollow structural part and preparation method thereof

Abstract

An embodiment of the invention provides a preparation method of a rib titanium alloy hollow structural part. The method comprises the steps that an upper core plate, a lower core plate and ribs are designed, the space of the upper core plate, the lower core plate and the ribs is filled with BaCl2, after combined welding, the upper core plate, the lower core plate and the ribs are placed in the space of an upper panel and a lower panel, wherein the lower panel and the lower core plate are basically attached, and when diffusion connection between the core plates and the ribs is carried out, the upper core plate cannot collapse, and the ribs cannot be bent. Furthermore, in the superplastic forming process of the upper core plate, deformation is small, the height of the ribs can be adjusted to conveniently control the superplastic deformation amount of the upper core plate, and the circumstance that the core plates are broken due to the fact that forming limit is exceeded cannot occur, so that titanium alloy hollow structures with various heights can be formed as long as mold and equipment conditions are allowed.

Description

technical field [0001] The invention relates to the technical field of metal plastic forming, in particular to a method for preparing a rib titanium alloy hollow structural part and the structural part. Background technique [0002] When the superplastic forming / diffusion bonding process is used to prepare the four-layer titanium alloy hollow sandwich structure, when the height of the ribs is high, it is easy to cause the core plate to break during the forming process due to the large local deformation of the core plate when the height of the ribs is high. The structural parts of the ribs, and the higher the ribs, the more difficult the forming technology is, and some even cannot be formed at all. In order to solve this problem, the only way is to optimize the forming process, but the degree of improvement is limited. Therefore, the superplastic forming / diffusion bonding process is limited in the preparation of high-rib structural parts, and it is generally impossible to fo...

AI Technical Summary

Problems solved by technology

[0007] In order to solve the problems existing in the manufacture of the existing superplastic forming / diffusion bonding preparation method of the hollow sandwich structure of titanium alloy high ribs

A preparation method and structural parts of ribbed titanium alloy hollow structural parts are proposed

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