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Local deformation correcting method for titanium alloy component

A technology of titanium alloy and components, which is applied in the field of local shape correction of titanium alloy components, can solve the problems of low efficiency of shape correction of titanium alloy components, and achieve the effect of ensuring the thermal efficiency of shape correction, simple heating equipment, and preventing overheating and oxidation

Active Publication Date: 2021-02-09
AVIC BEIJING INST OF AERONAUTICAL MATERIALS
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a method for correcting the shape of titanium alloy components in an atmospheric environment, so as to solve the problem of low efficiency of the existing vacuum annealing furnace for correcting the shape of titanium alloy components

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0058] A method for correcting the shape of a titanium alloy casting with an open elliptical port is characterized in that it comprises the following steps:

[0059] (1) Inspection of the shape correction area, the size inspection of the titanium alloy components is carried out to determine the area and the amount of shape correction of the components.

[0060] Step 1: Scan the surface profile of the titanium alloy component by scanning the surface profile of the titanium alloy component, and perform data fitting between the obtained three-dimensional structure data and the three-dimensional structure data designed for the titanium alloy component, and count the areas where the size deviation exceeds the required range , it is determined that there is a size out of tolerance in the port area of ​​the titanium alloy component;

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Abstract

The invention discloses a local deformation correcting method for a titanium alloy component, and belongs to the technical field of titanium alloy deformation correcting. Thermal deformation correcting is conducted on the titanium alloy component through an electromagnetic induction heating technology, and the method comprises the steps of component deformation correcting area positioning, fixingof the component in a deformation correcting mold, deformation correcting area fixing, deformation correcting and annealing treatment. The method is simple and convenient to operate, can be used for carrying out deformation correcting on a large-sized, thin-walled or curved titanium alloy component, and has dual functions of carrying out internal pressing and external expansion deformation correcting on the titanium alloy component. The component deformation correcting temperature is low, deformation correcting can be carried out in the atmosphere, protective atmosphere is not needed, and theproblem that the titanium alloy component vacuum high-temperature deformation correcting efficiency is low can be effectively solved.

Description

technical field [0001] The invention relates to a partial shape correction method for titanium alloy components, which belongs to the technical field of titanium alloy shape correction. Background technique [0002] Due to its crystal structure, titanium alloys have poor room temperature plasticity and difficult cold deformation. When correcting the shape of the component, it is not possible to use a hammer to directly strike the correction method, which will cause cracks or crack sources on the surface. Therefore, the titanium alloy component can only be corrected by heating. The way of schooling. At the same time, the elastic modulus of titanium is 110250Mpa, which is about half of that of steel. Therefore, the resilience of titanium alloy is relatively large. It is much more difficult to correct the shape of titanium alloy components than steel castings. Usually, mechanical correction and thermal deformation correction are used. two ways. [0003] The mechanical correct...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21D3/10B21D37/16B21C51/00
CPCB21D3/10B21D37/16B21C51/00Y02P10/25
Inventor 高威郄喜望张美娟
Owner AVIC BEIJING INST OF AERONAUTICAL MATERIALS
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