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Isotropic rolling method for aluminum alloy rectangular ring

A rectangular ring, isotropic technology, applied in metal rolling and other directions, can solve the problems of large difference between radial mechanical properties and axial mechanical properties, achieving consistency, and failure 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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  • Isotropic rolling method for aluminum alloy rectangular ring

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[0043] The main chemical element content (percentage by weight) of the alloy is: 1.9% to 2.5% of Cu, 1.4% to 1.8% of Mg, 0.9% to 1.5% of Fe, 0.9% to 1.5% of Ni, 0.9% to 1.5% of Ni, The content of Ti is 0.02%-0.10%, the content of Mn is 0.20%, the content of Zn is 0.30%, the content of Si is 0.35%, other elements are individually ≤0.05% and the sum is ≤0.10%, and the balance is Al.

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

[0045] Heat the aluminum alloy bar blanked according to the specification to the forging temperature, and after upsetting, punching, and pre-rolling, it is made into a shape with a height of H 1 , thickness B 1 , the outer diameter is R 1 rectangular ring blank;

[0046] Such asfigure 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...

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Abstract

The invention discloses an isotropic rolling method for an aluminum alloy rectangular ring. The isotropic rolling method comprises the following steps: firstly, heating an aluminum alloy bar till a forging temperature, and carrying out upsetting, piercing and pre-rolling to form a rectangular ring blank; secondly, loading the rectangular ring blank on a ring rolling mill, lifting a conical roller by h=5mm-10mm to tilt the rectangular ring blank, and then carrying out rolling forming to obtain the aluminum alloy rectangular ring. Such a method is capable of keeping the mechanical properties of the rectangular ring consistent in all directions by changing a flowing direction of a material during rolling, thereby improving the comprehensive mechanical properties of the rectangular ring. The method is used for producing the isotropic aluminum alloy rectangular rings.

Description

technical field [0001] The invention relates to a rolling method of an aluminum alloy rectangular ring, in particular to an isotropic rolling method of an aluminum 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 properties of rectangu...

Claims

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Application Information

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IPC IPC(8): B21H1/06
CPCB21H1/06
Inventor 蒲思洪郑永灵杨国平葛波邹善垚
Owner GUIZHOU ANDA AVIATION FORGING
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