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Rolling method of isotropic alpha-phase titanium alloy rectangular ring piece

A rectangular ring, isotropic technology, applied in the direction of metal rolling, etc., can solve the problems of consistent, radial mechanical properties and axial mechanical properties, and the inability to guarantee the mechanical properties of rings, etc.

Inactive Publication Date: 2016-03-16
GUIZHOU ANDA AVIATION FORGING
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Problems solved by technology

The production of rectangular rings is mostly carried out by radial rolling. The rings and blanks are designed at the same height. The tapered rollers only play the role of preventing the rings from climbing and limiting the height increase of the rings. The axial deformation is small. As a result, the radial mechanical properties of the ring are quite different from the axial mechanical properties
With the development and progress of ring rolling technology, people have gradually mastered the radial / axial bidirectional rolling forming method. The axial mechanical properties of rectangular rings produced by this method have been greatly improved. However, it is still not possible. Ensure that the mechanical properties of the ring are consistent in all directions

Method used

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  • Rolling method of isotropic alpha-phase titanium alloy rectangular ring piece

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[0043] The main chemical element content (percentage by weight) of the alloy is: Al content 4.0% ~ 6.0%, Sn content 2.0% ~ 3.0%, Fe content ≤ 0.50%, C content ≤ 0.10%, N content ≤ 0.05 %, H content ≤ 0.015%, O content ≤ 0.20%, the balance being Ti, and the sum of other elements ≤ 0.40.

[0044] The steps of this method are as follows:

[0045] Heat the α-phase titanium alloy bar blanked according to the specifications to the forging temperature, and after upsetting, punching, and pre-rolling, it is made into a material with a height of H1 , thickness B 1 , the outer diameter is R 1 rectangular ring blank;

[0046] Such as figure 1 As shown, the rectangular ring blank 1 is loaded into the ring rolling mill, the core roll 3 passes through the middle of the rectangular ring blank 1, the core roll 3 is driven and the rectangular ring blank 1 approaches the main roll 2, and then the tapered roll 4 is driven Near the other side of the rectangular ring blank 1, the upper and lowe...

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Abstract

The invention discloses a rolling method of an isotropic alpha-phase titanium alloy rectangular ring piece. The rolling method comprises the following steps: heating an alpha-phase titanium alloy rod to a forging temperature firstly, upsetting, punching, and pre-rolling to prepare a rectangular ring billet; and then installing the rectangular ring billet in a ring rolling machine, lifting a conical roll to the height equal to 5-10mm, enabling the rectangular ring billet to slant, and then carrying out rolling forming to acquire the alpha-phase titanium alloy rectangular ring piece. According to the rolling method disclosed by the invention, by changing the flowing direction of a material during rolling, the mechanical properties in every direction of the rectangular ring piece are kept consistent, and thus the comprehensive mechanical properties of the rectangular ring piece are improved. The rolling method is used for producing the isotropic alpha-phase titanium alloy rectangular ring piece.

Description

technical field [0001] The invention relates to a rolling method of an α-phase titanium alloy rectangular ring, in particular to an isotropic rolling method of an α-phase titanium alloy rectangular ring. Background technique [0002] Ring rolling is currently one of the most effective means of producing high-performance seamless rings, and has been widely used in many fields such as aviation and aerospace. The production of rectangular rings is mostly carried out by radial rolling. The rings and blanks are designed at the same height. The tapered rollers only play the role of preventing the rings from climbing and limiting the height increase of the rings. The axial deformation is small. As a result, the radial mechanical properties of the ring are quite different from the axial mechanical properties. With the development and progress of ring rolling technology, people have gradually mastered the radial / axial bidirectional rolling forming method. The axial mechanical proper...

Claims

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Application Information

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IPC IPC(8): B21H1/06B21H1/22
CPCB21H1/06B21H1/22
Inventor 占立水邹伟郭浩李艳红吴超
Owner GUIZHOU ANDA AVIATION FORGING
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