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Closed hole punching method of GH99 alloy high cylindrical ring part

A GH99 and alloy technology, applied in metal processing equipment, manufacturing tools, forging/pressing/hammer devices, etc., to achieve the effect of improving consistency, dimensional accuracy and batch stability, and reducing operation steps

Inactive Publication Date: 2017-04-05
GUIZHOU ANDA AVIATION FORGING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a closed punching method. By designing a closed punching die, the height ring is punched in the die to ensure that there will be no end surface pulling, Defects such as deformation, improve the quality of forgings

Method used

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  • Closed hole punching method of GH99 alloy high cylindrical ring part
  • Closed hole punching method of GH99 alloy high cylindrical ring part
  • Closed hole punching method of GH99 alloy high cylindrical ring part

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specific Embodiment approach

[0015] The main chemical element content (percentage by weight) of the GH99 alloy is: C content≤0.08%, Cr content 17.0%~20.0%, Co content 5.0%~8.0%, W content 5.0%~7.0%, Mo content 3.5%-4.5% Al content, 1.7%-2.4% Al content, 1.0%-1.5% Ti content, Fe content≤2.0%, B content≤0.005%, Ce content≤0.02%, Mg content≤ 0.01%, containing Mn ≤ 0.4%, containing Si ≤ 0.5%, containing P ≤ 0.015%, containing S ≤ 0.015%, and the balance being Ni.

[0016] The steps of this method are as follows:

[0017] Cut the GH99 alloy into bars according to certain specifications; heat the GH99 alloy bars to 1130±10°C for heat preservation, and the furnace temperature is ≤700°C; after heating through, put the GH99 alloy bars on the press to drive the forging hammer Upsetting the GH99 alloy rod to a predetermined size; put the upset GH99 alloy billet 4 into the punching die 1, and put them together under the press. The outer wall of the punching die 1 has a dovetail groove for fixing. Prevent the punchi...

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Abstract

The invention discloses a closed hole punching method of a GH99 alloy high cylindrical ring part. The method comprises the following steps: designing a hole punching die, wherein a dovetail groove for fixing is formed in the outer wall of the hole punching die, a limiting cushioning plate for adjusting the position of a blank is arranged in the hole punching die, and a GH99 alloy blank is subjected to hole punching in the hole punching die; and designing a leaking plate, wherein another dovetail groove for fixing is formed in the outer wall of the leaking plate, a limiting hole is formed in the upper end of the leaking plate, the GH99 alloy blank is rightly positioned into the limiting hole to be controlled, and the GH99 alloy blank is broken in the leaking plate, so as to achieve the hole punching of the GH99 alloy high cylindrical ring part. With the adoption of the method, the defects such as pulling and deformation of the end surface of the blank can be prevented, and thus the consistency of the blank is improved. The method is applied to the hole punching of the high cylindrical ring part.

Description

technical field [0001] The invention relates to a punching method, in particular to a closed punching method for a GH99 alloy high cylinder ring. Background technique [0002] The high-tube ring is a rotary part commonly used in aerospace and other fields. The ratio of the height to the wall thickness of the forging is large, and it is usually formed by rolling. Rolling generally refers to radial rolling, that is, the process of reducing the wall thickness and increasing the inner and outer diameters, with little change in height; even the most advanced diameter-axis two-way ring rolling technology can only be reduced by tapered rolls. Height, but can't control the height well. Therefore, when making blanks, the height of the blank is usually designed to be equal to or slightly greater than the height of the ring, so for high-tube rings, it is easy to cause defects such as blank end surface pulling and deformation during punching, which affects the quality of forgings . T...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21J5/08B21J5/10B21J1/06B21J13/02
CPCB21J1/06B21J5/08B21J5/10B21J13/02
Inventor 杨晋孔凡立雷静越王莹任腾飞李艳红
Owner GUIZHOU ANDA AVIATION FORGING
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