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Method for rolling rectangular structural steel ring blank to form irregularly-shaped thin-walled ring part

A rectangular ring and structural steel technology, applied in the field of rolling forming of rings, can solve problems such as improper control, affecting the quality of rings, intermittent rolling, etc., and achieve the effect of eliminating ovality

Active Publication Date: 2014-04-02
GUIZHOU ANDA AVIATION FORGING
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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 rolling rectangular structural steel ring blank to form irregularly-shaped thin-walled ring part
  • Method for rolling rectangular structural steel ring blank to form irregularly-shaped thin-walled ring part
  • Method for rolling rectangular structural steel ring blank to form irregularly-shaped thin-walled ring part

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specific Embodiment approach

[0036] The main chemical element content (percentage by weight) of the alloy is: C content 0.34% ~ 0.42%, Mn content 0.50% ~ 0.80%, Si content 0.17% ~ 0.37%, S content ≤ 0.015%, P content ≤0.025%, Cr content 0.08%~1.10%, Ni content ≤0.40%, Cu content ≤0.25, balance Fe.

[0037] The steps of this method are as follows:

[0038] 1. Design rectangular ring blank 1

[0039] Calculate the rectangular blank dimensions as follows:

[0040] (1) The height of the rectangular ring blank 1 is:

[0041] h 1 =H 2 ;

[0042] Among them: H 1 is the height of the rectangular ring blank 1;

[0043] h 2 is the height of the special-shaped thin-walled ring 3.

[0044] (2) The inner diameter of the rectangular ring blank 1 is:

[0045] d = d max k - ( d max - d ...

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Abstract

The invention discloses a method for rolling a rectangular structural steel ring blank to form an irregularly-shaped thin-walled ring part. According to the rolling method, a reasonable core roller feeding mode is provided, and the rectangular structural steel ring blank is inversely designed according to the shape and the size of the irregularly-shaped thin-walled structural steel ring part to realize the rolling of the rectangular structural steel ring blank into the irregularly-shaped thin-walled ring part, so that a rolling process can be continuously and stably implemented; the rolling method is mainly used for the forming of the irregularly-shaped thin-walled structural steel ring part in the fields of aviation, aerospace, 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 structural steel 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] Chinese Invention Patent Specification CN 101279343A published on October 8, 2008 discloses a rolling forming method of stainless steel special-shaped rings. In this method, the stainless steel bars blanked according to spec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21H1/06B21J1/04B21J5/10
Inventor 张衡杨晋江锦权杨国平卢艳黎汝栋斯庆阳程治
Owner GUIZHOU ANDA AVIATION FORGING
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