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High temperature alloy-titanium alloy bimetallic ring piece rolling forming method

A technology of superalloy and titanium alloy, applied in the direction of metal rolling, metal rolling, etc., can solve the problems of rolling failure, low production efficiency, many processes, etc., and achieve the effect of good size

Inactive Publication Date: 2017-12-08
GUIZHOU ANDA AVIATION FORGING
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Since the two single metal rings are rolled and formed separately, this method has many procedures, time-consuming and laborious, and low production efficiency
And when the two single-metal rings formed by rolling are combined and assembled, only elastic deformation or small plastic deformation occurs at the contact interface of the rings, which leads to poor interface contact quality and low connection strength of the bimetal rings manufactured by this method, which cannot meet the requirements of Requirements for service performance and service life of high-performance bimetallic rings
[0003] Bimetal ring rolling refers to rolling two metal ring blanks together. During the rolling process, since the deformation resistance of the metal is related to factors such as temperature and the characteristics of the material itself, it is easy to cause uneven deformation, while lead to rolling failure

Method used

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  • High temperature alloy-titanium alloy bimetallic ring piece rolling forming method

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[0016] The main chemical element content (percentage by weight) of the GH4169 alloy is: C content≤0.08%, Cr content 17.0%~21.0%, Ni content 50.0%~55.0%, Co content≤1.0%, Mo content 2.80% %~3.30%, Al content 0.30%~0.70%, Ti content 0.75%~1.15%, Nb content 4.75%~5.50%, B content≤0.006%, Mg content≤0.01%, Mn content≤ 0.35%, Si content≤0.35%, P content≤0.015%, S content≤0.015%, Cu content≤0.30%, Ca content≤0.01%, Pb content≤0.0005%, Se content≤0.0003 %, the balance is Fe.

[0017] The main chemical element content (percentage by weight) of the TC4 alloy is: 5.5%-6.8% Al content, 3.5%-4.5% V content, 0.30% Fe content, 0.10% C content, 0.05% N content, The content of H is 0.015%, the content of O is 0.20%, and the balance is Ti.

[0018] The steps of this method are as follows:

[0019] The GH4169 alloy and TC4 alloy are cut into bars according to certain specifications, and then processed into GH4169 alloy ring billet 4 and TC4 alloy ring billet 5 through upsetting, punching and...

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Abstract

The invention discloses a high temperature alloy-titanium alloy bimetallic ring piece rolling forming method. The method comprises the following steps: first, respectively upsetting, punching and pre-rolling a high temperature alloy and a titanium alloy rod material into a high temperature alloy ring blank and a titanium alloy ring blank; and sleeving the high temperature alloy ring blank on the outer surface of the titanium alloy ring blank and rolling together on a ring rolling machine to obtain a high temperature alloy-titanium alloy bimetallic ring piece. According to the method, a rolling deformation resistance ratio is derived and a rolling deformation temperature is determined through the rolling ratio of double metals, so that the two metals are respectively heated to the corresponding temperature to roll and form to obtain a bimetallic ring piece with high performance and a good size. The method is used for rolling and deforming the bimetallic ring piece.

Description

technical field [0001] The invention relates to a ring rolling forming method, in particular to a high temperature alloy-titanium alloy bimetallic ring rolling forming method. Background technique [0002] The bimetallic ring is a composite ring composed of two different metals. The rings are tightly combined through various deformation and connection techniques, and the inner and outer rings will not be separated under the action of external forces. Compared with single metal rings, bimetallic rings can give full play to the best properties of the two metals, not only have excellent physical, chemical, mechanical and other comprehensive properties, but also save a lot of precious metals and reduce production costs. Metal rings are widely used in machinery, automobiles, trains, ships, metallurgy, chemicals, energy, aerospace and other industrial fields. At present, the main manufacturing method of bimetallic rings is to roll and form two single metal rings respectively thro...

Claims

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Application Information

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IPC IPC(8): B21H1/06B21B3/00
CPCB21H1/06B21B3/00
Inventor 苏海谢永富袁慧罗通郭涛
Owner GUIZHOU ANDA AVIATION FORGING
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