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Local die forging and rolling combined forming method for titanium alloy T-shaped section ring piece

A forming method and titanium alloy technology, applied in the field of forging, can solve the problems of undisclosed rolling T-shaped cross-section special-shaped titanium alloy ring forging process steps, metal filling dissatisfaction, etc., to achieve the effect of saving forging cost and simple process

Inactive Publication Date: 2021-10-19
SHAANXI HEYE SPECIAL STEEL TOOL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method only expounds the control of the blank size of the T-shaped cross-section special-shaped ring from the perspective of theoretical calculation, and does not disclose the specific process steps of rolling the T-shaped special-shaped titanium alloy ring forging, and does not solve the metal problem in the cerclage process from the actual production and manufacturing aspects. filling problem

Method used

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  • Local die forging and rolling combined forming method for titanium alloy T-shaped section ring piece
  • Local die forging and rolling combined forming method for titanium alloy T-shaped section ring piece
  • Local die forging and rolling combined forming method for titanium alloy T-shaped section ring piece

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Effect test

Embodiment 1

[0039] In the present embodiment, the specific implementation of the method is described in detail with the trade mark being TC4 alloy as an example:

[0040] The main chemical element content of TC4 alloy is:

[0041] Table 1. Main chemical elements of TC4 alloy

[0042] element Al V Ti Fe C N H O content(%) 5.5～6.8 3.5～4.5 margin ≤0.30 ≤0.10 ≤0.05 ≤0.015 ≤0.20

[0043] The implementation of the partial die forging and rolling joint forming method of titanium alloy rings requires the provision of band sawing machines, forging heating furnaces, presses, ring rolling machines, and manipulators.

[0044] The partial die forging and rolling combined forming method of a titanium alloy T-section ring according to the present invention adopts the following technical solutions, including: preparation of a near-rectangular ring blank, preparation of a special-shaped prefabricated ring blank, and ring rolling.

[0045] Further, the preparation of...

Embodiment 2

[0069] In this embodiment, the specific implementation of the method is described in detail by taking the brand as an example of TA15 alloy:

[0070] The main chemical element content of TA15 alloy is:

[0071] Table 2. Main chemical elements of TA15 alloy

[0072] element Al V Ti Fe C N H O content(%) 5.5～7.0 0.8～2.5 margin 0.25 ≤0.10 ≤0.05 ≤0.015 ≤0.15 element Zr Si content(%) 1.5～2.5 0.15

[0073] The implementation of the partial die forging and rolling joint forming method of titanium alloy rings requires the provision of band sawing machines, forging heating furnaces, presses, ring rolling machines, and manipulators.

[0074] The partial die forging and rolling combined forming method of a titanium alloy T-section ring according to the present invention adopts the following technical scheme, including preparation of a nearly rectangular ring blank, preparation of a special-shaped ring blank, an...

Embodiment 3

[0099] In the present embodiment, the specific implementation of the method is described in detail by taking the brand as an example of TC11 alloy:

[0100] The main chemical element content of TC11 alloy is:

[0101] Table 3. Main chemical elements of TC11 alloy

[0102] element Al Mo Ti Fe C N H O content(%) 5.8～7.0 2.8～3.8 margin ≤0.25 ≤0.10 ≤0.05 ≤0.012 ≤0.15 element Zr Si content(%) 0.8～2.0 0.2～0.35

[0103] The implementation of the partial die forging and rolling joint forming method of titanium alloy rings requires the provision of band sawing machines, forging heating furnaces, presses, ring rolling machines, and manipulators.

[0104] The partial die forging and rolling joint forming method of a titanium alloy T-section ring according to the present invention adopts the following technical scheme, including preparation of a near-rectangular ring blank, preparation of a special-shaped prefa...

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Abstract

The invention discloses a local die forging and rolling combined forming method for a titanium alloy T-shaped section ring piece, in order to obtain the titanium alloy T-shaped section ring piece which is complex in section shape, precise in size and excellent in performance. The local die forging and rolling combined forming method is characterized by comprising the following steps that a sawn alloy bar is heated to an initial forging temperature and subjected to heat preservation, and a nearly-rectangular ring blank is prepared through the two working procedures of upsetting and punching; local open die forging is adopted, pressure is applied to the upper end face and the lower end face, close to the outer circle, of the nearly-rectangular ring blank, and a special-shaped prefabricated ring blank is obtained through local deformation; and the special-shaped prefabricated ring blank is heated to the initial forging temperature of the titanium alloy and subjected to heat preservation, then the special-shaped prefabricated ring blank is put into a ring rolling mill, ring rolling is conducted on the special-shaped prefabricated ring blank at the corresponding rotating speed in combination with the radial feeding speed of a core roller through a main roller rolling die, and the T-shaped section ring piece is obtained. According to the local die forging and rolling combined forming method for the titanium alloy T-shaped section ring piece, the production process can be simplified to the maximum extent, the production cost of parts is reduced, the size of the ring piece is guaranteed, the complete forging streamline is reserved, and the situation that the ring piece has a good mechanical property is ensured.

Description

technical field [0001] The invention belongs to the technical field of forging, and in particular relates to a partial die forging and rolling joint forming method of a titanium alloy T-shaped section ring. Background technique [0002] Titanium alloy is a kind of high specific strength material, and its T-shaped cross-section ring is often used as a key component in engine and gas turbine equipment, and is widely used in aerospace or shipbuilding and other fields. Because the titanium alloy T-section ring is always troubled by the difficulty of forging and the low dimensional accuracy of forged parts, the production efficiency is low. Therefore, the ring forming technology of titanium alloy T-shaped cross-section with simple process and easy mass and rapid production has been put on the agenda. At present, the main forming methods of rings with T-shaped cross-sections in China are: integral open die forging or closed die forging forming, free forging nearly rectangular rin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21J5/00B21J5/08B21J5/02B21J5/10B21J1/06B21H1/06C22C14/00B23P15/00
CPCB21J5/002B21J5/08B21J5/10B21J5/022B21J1/06B21H1/06C22C14/00B23P15/00
Inventor 王世超霍达黄坤于杰丁学生闫伟宁张兰涛宋冬行张柯冯谊勋
Owner SHAANXI HEYE SPECIAL STEEL TOOL