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

A high-temperature alloy and rectangular ring technology, applied in the field of rolling forming of rings, can solve problems affecting the quality of rings, improper control, intermittent rolling, etc.

Active Publication Date: 2015-11-25
GUIZHOU ANDA AVIATION FORGING
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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

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specific Embodiment approach

[0037] The main chemical element content (percentage by weight) of the alloy is: 0.05% to 0.15% of C content, 20.0% to 24.0% of Cr content, 20.0% to 24.0% of Ni content, 13.0% to 16.0% of W content, 13.0% to 16.0% of W content, La content 0.03% ~ 0.12%, Si content 0.20% ~ 0.50%, Fe content ≤ 0.30%, B content ≤ 0.015%, Mn content ≤ 1.25%, P content ≤ 0.020%, S content ≤ 0.015 %, containing Ag ≤ 0.0010%, containing Bi ≤ 0.0001%, containing Pb ≤ 0.0010%, containing Cu ≤ 0.07%, and the balance being Co.

[0038] The steps of this method are as follows:

[0039] 1. Design rectangular ring blank 1

[0040] Calculate the rectangular blank dimensions as follows:

[0041] (1) The height of the rectangular ring blank 1 is:

[0042] h 1 =H 2 ;

[0043] Among them: H 1 is the height of the rectangular ring blank 1;

[0044] h 2 is the height of the special-shaped thin-walled ring 3.

[0045] (2) The inner diameter of the rectangular ring blank 1 is:

[0046] d ...

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Abstract

The invention discloses a method for rolling a cobalt-based high-temperature alloy rectangular ring blank into a special-shaped thin-walled ring component. In order to continuously and stably perform a rolling process, the invention provides a reasonable core roller feeding method, and the cobalt-based high-temperature alloy rectangular ring blank is back-stepped and designed according to the shape and the size of a cobalt-based high-temperature alloy special-shaped thin-walled ring component, so that the cobalt-based high-temperature alloy rectangular ring blank is rolled to form the special-shaped thin-walled ring component. The rolling method is mainly used for forming the cobalt-based high-temperature alloy special-shaped thin-walled ring component used in the fields of aviation, spaceflight, industrial machinery and the like.

Description

technical field [0001] The invention relates to a rolling forming method of a ring, in particular to a method for rolling a cobalt-based superalloy rectangular ring billet 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 billet, and then put t...

Claims

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Application Information

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