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Closed punching method of TC4 alloy high barrel ring part

An alloy and punching technology, applied in the field of closed punching, achieves the effects of improving dimensional accuracy and batch stability, reducing operation difficulty, and improving appearance quality

Inactive Publication Date: 2017-05-10
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 of TC4 alloy high barrel ring part
  • Closed punching method of TC4 alloy high barrel ring part
  • Closed punching method of TC4 alloy high barrel ring part

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specific Embodiment approach

[0015] The main chemical element content (percentage by weight) of the TC4 alloy is: 5.5%-6.8% Al content, 3.5%-4.5% V content, 0.30% Fe content, 0.10% C content, 0.05% N content, The content of H is 0.015%, the content of O is 0.20%, and the balance is Ti.

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

[0017] Cut the TC4 alloy into bars according to certain specifications; heat the TC4 alloy bars to 30°C below the phase transition point, and keep warm at 0.6min / mm; The hammer upsets the TC4 alloy bar to a predetermined size; puts the upset TC4 alloy billet 4 into the punching die 1, and puts them together under the press. The outer wall of the punching die 1 has a dovetail groove for fixing , to prevent the punching die 1 and the TC4 alloy blank 4 from moving with the forging hammer, such as figure 1 As shown, the punching die 1 is equipped with a limit pad 2. The pad 2 is designed according to the height of the TC4 alloy blank 4, so that the TC4 alloy blank 4 is flush...

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Abstract

The invention discloses a closed punching method of a TC4 alloy high barrel ring part. The closed punching method comprises following steps that a punching die is designed firstly, a dovetail groove used for fixing is formed in the outer wall of the punching die, a limiting pad plate for adjusting the position of a blank is arranged in the punching die, and a TC4 alloy blank is punched in the punching die; and meanwhile, a leaking plate is designed, a dovetail groove used for fixing is also formed in the outer wall of the leaking plate, a limiting hole is formed in the upper end of the leaking plate, the TC4 alloy blank is just placed in the limiting hole, the TC4 alloy blank is punched open in the leaking plate, and punching of the TC4 alloy high barrel ring part is realized. According to the method, defects such as end surface material tensioning and deformation of the blank can be prevented, and the consistency of blanks is improved. The method is used for punching of the high barrel ring part.

Description

technical field [0001] The invention relates to a punching method, in particular to a closed punching method for a TC4 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 . Th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21K21/00B21J5/08B21J5/10B21J13/02C22C14/00
CPCB21J5/08B21J5/10B21J13/02B21K21/00C22C14/00
Inventor 占立水李明杨志国邹善垚蒋礼萍
Owner GUIZHOU ANDA AVIATION FORGING