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Method for formation of beta-phase titanium alloy multi-step large profiled ring

A special-shaped ring and multi-step technology, applied in the direction of metal rolling, etc., can solve the problems of affecting the forming effect, unreasonable matching between blank and mold, unreasonable blank or mold design, etc., and achieve the effect of overcoming more cross-sectional mutation areas

Inactive Publication Date: 2016-03-02
GUIZHOU ANDA AVIATION FORGING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For complex multi-step special-shaped rings, when this method is used for forming, the forming effect will be seriously affected due to the unreasonable design of the blank or the mold, or the unreasonable matching of the blank and the mold during the rolling process.

Method used

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  • Method for formation of beta-phase titanium alloy multi-step large profiled ring
  • Method for formation of beta-phase titanium alloy multi-step large profiled ring
  • Method for formation of beta-phase titanium alloy multi-step large profiled ring

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specific Embodiment approach

[0032] The main chemical element content (percentage by weight) of the alloy is: 4.7%-5.7% Mo content, 4.7%-5.7% V content, 7.5%-8.5% Cr content, 2.5%-3.5% Al content, Fe content ≤ 0.30%, C content ≤ 0.05, N content ≤ 0.04%, H content 0.015%, O content 0.15%, the balance being Ti, and the sum of other elements ≤ 0.40.

[0033] The steps of this method are as follows:

[0034] Step 1: Prepare intermediate ring blank

[0035] Such as figure 1 As shown, according to the structural characteristics of the β-phase titanium alloy multi-step large-scale special-shaped ring 1, the cross-section of the forging is cut equidistantly and layer by layer from the height direction with the help of drawing software, and the cross-sectional area data of the multi-step large-scale special-shaped ring 1 is obtained and made into a curve 2 ,Such as figure 2 As shown, the relationship between the cross-sectional area and height of the multi-step large-scale special-shaped ring 1 is obtained; th...

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Abstract

The invention discloses a method for the formation of a beta-phase titanium alloy multi-step large profiled ring. The method comprises the following steps: firstly, adopting cartographic software for assisted preparation of an intermediate ring blank, placing the intermediate ring blank into a ring rolling mill for rolling, during rolling, lifting up a working table on which the intermediate ring blank is positioned for 5 mm to 10 mm, so as to enable a main roller to be in contact with the lower end of the intermediate ring blank firstly, ensuring that a metal material starts to fill a die cavity from the bottom to the top, gradually accomplishing the formation of all steps, and then carrying out bulging to the rolled multi-step large profiled ring. Due to the adoption of the method, the multi-step large profiled ring is achieved, and the phenomenon of rib deviation or rib stringing occurred during the formation of the multi-step large profiled ring can be effectively avoided, therefore, the performance of a forge piece is improved. The method provided by the invention is applicable to the formation of the beta-phase titanium alloy multi-step large profiled ring.

Description

technical field [0001] The invention relates to a method for forming a multi-step large-scale special-shaped ring, in particular to a method for forming a multi-step large-scale special-shaped ring of β-phase titanium alloy. Background technique [0002] Special-shaped ring forgings are designed according to the contour of the part, which can effectively improve the utilization rate of materials, obtain ideal performance and streamlines that match the contour of the part. However, in reality, the shape of parts is often strange, and it is difficult to design completely according to the outline of the part. It can only be designed as a special-shaped ring forging that is similar to the cross-section of the part and is relatively simple. Compared with the rectangular ring forging, this method uses more materials. Although the rate has increased, the amount of improvement is limited. At present, most of the special-shaped rings formed by rolling are simple special-shaped rings...

Claims

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Application Information

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IPC IPC(8): B21H1/06B21H1/22
CPCB21H1/06B21H1/22
Inventor 郑永灵卢艳刘成潘俊杰杨国平
Owner GUIZHOU ANDA AVIATION FORGING
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