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A Local Shape Correction Method for Titanium Alloy Components

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 effects of ensuring heat efficiency of shape correction, simple heating equipment, and preventing overheating and oxidation

Active Publication Date: 2022-05-17
AVIC BEIJING INST OF AERONAUTICAL MATERIALS
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  • Summary
  • Abstract
  • Description
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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 relates to a partial shape correction method for titanium alloy components, which belongs to the technical field of titanium alloy shape correction. The invention adopts the electromagnetic induction heating technology to carry out thermal deformation correction to the titanium alloy component, which includes the positioning of the component correction area, the fixing of the component in the correction mold, the fixation of the correction region, the correction and annealing treatment. The method is easy to operate, can correct the shape of large, thin-walled or curved titanium alloy components, and has dual functions of internal pressure and external expansion of the titanium alloy components. The temperature of component shape correction is low, and it can be carried out in the atmosphere without protective atmosphere, which can effectively solve the problem of low efficiency of vacuum high temperature shape correction of titanium alloy components.

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 Patents(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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