Closed punching method for GH4169 alloy high-cylinder ring part

A GH4169, alloy technology, applied in metal processing equipment, manufacturing tools, forging/pressing/hammer devices, etc., to achieve the effect of reducing operation difficulty, improving appearance quality, and improving consistency

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 punching method for GH4169 alloy high-cylinder ring part
  • Closed punching method for GH4169 alloy high-cylinder ring part
  • Closed punching method for GH4169 alloy high-cylinder ring part

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specific Embodiment approach

[0015] The main chemical element content (weight percentage) 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.

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

[0017] Cut the GH4169 alloy into bars according to certain specifications; heat the GH4169 alloy bars to 1050±10°C for heat preservation, and the furnace temperature ≤750°C; after the heat is through, place the GH4169 alloy bars on the press and drive the forging hammer Upsetting the GH4169 alloy bar to a predetermined size; put the upsetting GH4169 alloy blank 4 into the punching die 1 and put them together under the press. The outer wall of the punchi...

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Abstract

The invention discloses a closed punching method for a GH4169 alloy high-cylinder ring part. The method includes the steps that a punching die is designed firstly, a dovetail groove for fixation is formed in the outer wall of the punching die, a limiting pad used for adjusting the position of a blank is arranged in the punching die, and the GH4169 alloy blank is punched in the punching die; and a leakage plate is designed, a dovetail groove for fixation is formed in the outer wall of the leakage plate, a limiting hole is formed in the upper end of the leakage plate, the GH4169 alloy blank is exactly placed in the limiting hole and is punched in the leakage plate, and therefore punching of the GH4169 alloy high-cylinder ring part is realized. According to the method, the flaws such as pulling and deforming of end faces of blanks are prevented, and the uniformity of the blanks is improved. The method is used for punching the high-cylinder ring part.

Description

Technical field [0001] The invention relates to a punching method, in particular to a closed punching method for a GH4169 alloy high-tube ring. Background technique [0002] High-tube ring parts are commonly used rotating parts in aerospace and other fields. The height and wall thickness of the forging are relatively large, and they are usually formed by rolling. Rolling generally refers to radial rolling, that is, the process of reducing the wall thickness to increase the inner and outer diameters, and the height change is small; even the most advanced radial-axis bidirectional rolling ring technology can only be reduced by tapered rollers. Height, and can’t control the height well. Therefore, when making a billet, the height of the billet is usually designed to be equal to or slightly greater than the height of the ring. For high-tube ring, it is easy to cause defects such as pulling and deformation of the end face of the billet during punching, which affects the quality of th...

Claims

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Application Information

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IPC IPC(8): B21J5/08B21J5/10B21J1/06B21J13/02
CPCB21J1/06B21J5/08B21J5/10B21J13/02
Inventor 叶俊青田丰陈明叶康源杨亚平
Owner GUIZHOU ANDA AVIATION FORGING
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