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Closed type punching method of GH907 alloy high-cylinder ring piece

A technology of GH907 and alloy, which is applied in the field of punching to achieve the effect of improving appearance quality, reducing operation steps, improving dimensional accuracy and batch stability

Inactive Publication Date: 2017-05-31
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 type punching method of GH907 alloy high-cylinder ring piece
  • Closed type punching method of GH907 alloy high-cylinder ring piece
  • Closed type punching method of GH907 alloy high-cylinder ring piece

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specific Embodiment approach

[0015] The main chemical element content (percentage by weight) of the GH907 alloy is: C content ≤ 0.12%, Ni content 35.0% ~ 40.0%, Co content 12.0% ~ 16.0%, Ti content 1.30% ~ 1.80%, containing ( Nb+Ta) content 4.30% ~ 5.20%, Si content 0.07% ~ 0.35%, Cr content ≤ 1.00%, Al content ≤ 0.20%, B content ≤ 0.012%, Mn content ≤ 1.00%, Cu content content ≤0.50%, S content ≤0.015%, P content ≤0.015%, and the balance is Fe.

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

[0017] The GH907 alloy is cut into bars according to certain specifications; the GH907 alloy bar is heated to 650±10°C, kept at (0.4~0.5)min / mm, and then heated to 1040±10°C, pressed at (0.4~0.5) Min / mm heat preservation, furnace temperature ≤ 650°C; after heat penetration, put the GH907 alloy bar on the press, drive the forging hammer to upset the GH907 alloy bar to the predetermined size; the upset GH907 alloy billet 4 Put them into the punching die 1 and place them under the press together. The outer wall of...

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Abstract

The invention discloses a closed type punching method of a GH907 alloy high-cylinder ring piece. The closed type punching method comprises the following steps: first, designing a punching die, and punching a GH907 alloy blank in the punching die, wherein the outer wall of the punching die is provided with a dovetail groove used for fixing, and a limiting pad plate used for adjusting the position of the blank is arranged in the punching die; and at the same time, designing a leaking plate, placing the GH907 alloy blank right in a limiting hole, punching the GH907 alloy blank in the leaking plate, and realizing the punching of the GH907 alloy high-cylinder ring piece, wherein the outer wall of the leaking plate is also provided with a dovetail groove used for fixing, and the limiting hole is arranged in the upper end of the leaking plate. The method can prevent defects, such as blank end surface drawing damage and deformation, and improve the consistency of the blank. The method is used for punching the high-cylinder ring piece.

Description

technical field [0001] The invention relates to a punching method, in particular to a closed punching method for a GH907 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 . ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21J5/08B21J5/10B21J13/02B21J1/06B21K21/00
CPCB21J1/06B21J5/08B21J5/10B21J13/02B21K21/00
Inventor 奚晓刘建李兴品闫东徐东
Owner GUIZHOU ANDA AVIATION FORGING
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