Method for forming iron-based superalloy rectangular ring blank into special-shaped thin-walled ring by rolling

An iron-based high-temperature alloy and rectangular ring technology, which is applied in the field of ring rolling and forming, can solve problems such as improper control, affecting the quality of ring parts, intermittent rolling, etc., and achieve the effect of eliminating ovality

Active Publication Date: 2016-02-10
GUIZHOU ANDA AVIATION FORGING
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

When the above-mentioned method is used to produce special-shaped rings with thin wall thickness, the rolling process cannot be completed smoothly due to unreasonable design of the blank or improper control of rolling parameters (such as the feed speed of the core roll, etc.), and intermittent failures will occur. Rolling phenomenon seriously affects the quality of the ring

Method used

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  • Method for forming iron-based superalloy rectangular ring blank into special-shaped thin-walled ring by rolling
  • Method for forming iron-based superalloy rectangular ring blank into special-shaped thin-walled ring by rolling
  • Method for forming iron-based superalloy rectangular ring blank into special-shaped thin-walled ring by rolling

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specific Embodiment approach

[0038] The main chemical element content (percentage by weight) of the alloy is: C content≤0.06%, Si content 0.07%~0.35%, Ni content 35.0%~40.0%, Co content 12.0%~16.0%, Nb+ Ta content 4.3%~5.2%, Ti content 1.3%~1.8%, Cr content ≤1.00%, Al content ≤0.20%, Mn content ≤1.00%, Cu content ≤0.50%, B content ≤0.012 %, S content≤0.015%, P content≤0.015%, and the balance is Fe.

[0039] The steps of this method are as follows:

[0040] 1. Design rectangular ring blank 1

[0041] Calculate the rectangular blank dimensions as follows:

[0042] (1) The height of the rectangular ring blank 1 is:

[0043] h 1 =H 2 ;

[0044] Among them: H 1 is the height of the rectangular ring blank 1;

[0045] h 2 is the height of the special-shaped thin-walled ring 3.

[0046] (2) The inner diameter of the rectangular ring blank 1 is:

[0047] d = d m a x k ...

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Abstract

The invention discloses a method for rolling an iron-based high temperature alloy rectangular ring blank to form a special-shaped thin wall ring piece. In order to enable the rolling process to be continuously and stably conducted, a reasonable feeding mode of a core roller is proposed, the iron-based high temperature alloy rectangular ring blank is designed in a backstepping mode according to the shape and the size of the iron-based high temperature alloy special-shaped thin wall ring piece, and thus the iron-based high temperature alloy rectangular ring blank is rolled to form the special-shaped thin wall ring piece. The method for rolling the iron-based high temperature alloy rectangular ring blank to form the special-shaped thin wall ring piece is mainly applied to forming of iron-based high temperature alloy special-shaped thin wall ring pieces in the fields of aviation, aerospace, industrial machinery and the like.

Description

technical field [0001] The invention relates to a method for rolling and forming a ring, in particular to a method for rolling and forming a rectangular ring blank of an iron-based superalloy into a special-shaped thin-walled ring. Background technique [0002] As the ring rolling technology becomes more and more mature, the design of the ring parts becomes more and more refined, and special-shaped thin-walled ring parts are produced accordingly. The shape and size of this special-shaped thin-walled ring are closer to the shape and size of the part, which can greatly reduce the machining allowance, thereby reducing the damage to the forging streamline of the ring by machining, saving a lot of precious metal materials, and improving the material quality. utilization rate. [0003] The Chinese invention patent specification CN101279346A published on October 8, 2008 discloses a rolling forming method of nickel-based superalloy special-shaped rings. , Twice rolling the ring bi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21H1/06
Inventor 谢永富邱伟葛金锋占立水邓远翔邹善垚吴涛王莹
Owner GUIZHOU ANDA AVIATION FORGING
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