Rolling and bulging composite forming method of high temperature alloy ring piece

A composite forming and superalloy technology, applied in the field of superalloy ring rolling and bulging composite forming, can solve the problems of poor performance, low precision and low material utilization rate.

Inactive Publication Date: 2019-04-05
GUIZHOU ANDA AVIATION FORGING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a compound forming method of ring rolling and bulging, which overcomes the shortcomings of low precision, low material utilization rate and poor performance in the prior art

Method used

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  • Rolling and bulging composite forming method of high temperature alloy ring piece
  • Rolling and bulging composite forming method of high temperature alloy ring piece
  • Rolling and bulging composite forming method of high temperature alloy ring piece

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specific Embodiment approach

[0029] The main chemical element content (percentage by weight) of the 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.

[0030] The steps of this method are as follows:

[0031] The first step: determine the outer diameter R of the bulging blank Z , Inner diameter of bulging blank r z , Height of bulging blank h z , initial rough inner diameter r 0 , the initial blank axial height h 0 and the initial rough outer diameter R 0 ;

[0032] Calculate the blank of the bulging process according to the size of the ring without finishing, and the wall thickness of the ring without finishing is b f , the minimum outer...

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Abstract

The invention discloses a rolling and bulging composite forming method of a high temperature alloy ring piece. The rolling and bulging composite forming method is characterized in that through the design of a rolled blank and a bulged blank and accurate control over the rolling and bulging processes, the defects that in the prior art, the precision is low, or the material utilization rate is not high, and properties are poor are overcome, and the high temperature alloy ring piece meeting requirements is prepared. The preparation method of the high temperature alloy ring piece is mainly used for forming of high temperature alloy ring pieces in the fields such as aviation, aerospace and industrial machinery.

Description

technical field [0001] The invention relates to a ring forming method, in particular to a high-temperature alloy ring rolling and bulging composite forming method. Background technique [0002] At present, the production of rings generally adopts ring rolling direct forming, ring rolling + cutting or ring billet rigid die bulging to form such rings. When the ring rolling method is used to directly form special-shaped rings, when the wall thickness of the formed special-shaped rings is uniform, there is no stable contact surface between the roll and the ring blank, which will make it difficult to continue the rolling process and the accuracy of the formed rings. Meet aerospace requirements. The method of ring rolling + cutting is to first form a rectangular ring by ring rolling, and then obtain a special-shaped ring that meets the shape and size requirements by CNC cutting; on the one hand, the cutting destroys the metal flow line and reduces the ring performance. As a resu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P15/00
CPCB23P15/00
Inventor 王龙祥罗通蒋礼萍
Owner GUIZHOU ANDA AVIATION FORGING
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