Rolling method of high-temperature alloy plate shaped forging

A high-temperature alloy and plate shape technology, which is applied in the rolling field of plate-shaped forgings, can solve the problems of multiple forging fires, achieve the effects of improving quality, avoiding uneven thickness, and improving production efficiency

Inactive Publication Date: 2016-03-16
GUIZHOU ANDA AVIATION FORGING
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  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a rolling method for high-temperature alloy plate-shaped forgings to produce plate forgings. The forgings are made into high-tube thin-walled ring-shaped forgings by r...

Method used

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Embodiment approach

[0018] The chemical composition (percentage by weight) 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.

[0019] The steps of this method are as follows:

[0020] Heat the high-temperature alloy rods blanked according to the specifications to 980°C, and carry out heat preservation according to the effective thickness × 8min / 10mm; use three times of upsetting, elongation, and rounding for re-forging, and air cooling after forging; the final forging temperature is greater than or equal to 880°C;

[0021] Reheat the reforged billet to 850°C, and keep it warm according to the effective thickness × 8min / 10mm; ...

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Abstract

The invention discloses a rolling method of a high-temperature alloy plate shaped forging. The method comprises the following steps: performing substituting forging for a high-temperature alloy blank in a manner of upsetting at three times and drawing out at three times; then processing the high-temperature alloy blank subjected to the substituting forging by upsetting, punching a hole, expanding the hole through a mandrel supporter and rolling, so as to obtain a high-barrel thin-wall ring part, wherein the inside diameter of the ring part is 85 to 90% of the outside diameter; then performing linear cutting, namely, cutting the high-barrel thin-wall ring part into two semicircular ring parts; straightening through a forging hammer to obtain two plate shaped forgings. With the adoption of the method, the defects of the forging, such as non-uniform thickness, poor structure uniformity and a plurality of forging times, can be effectively avoided, thus the quality of the forging can be improved, and the production efficiency can be improved. The method is applied to the production of the high-temperature alloy plate shaped forging.

Description

technical field [0001] The invention relates to a rolling method of a plate-shaped forging, in particular to a rolling method of a high-temperature alloy plate-shaped forging. Background technique [0002] The plate-shaped part is a commonly used structural part. At present, the free forging method is usually adopted for the forming of this type of forging, that is, forging with a free forging hammer to make it into a plate shape. The biggest disadvantage of this method is that the thickness of this type of forging is small, the temperature drops too fast during the forging process, and the deformation resistance increases quickly, so that the thickness of each hammer forging is not the same, resulting in the thickness of the final plate-shaped forging. Uniformity, and because the deformation of each part is inconsistent, the structure uniformity of the forging is poor. Usually, multiple forgings are required, which increases energy consumption and prolongs the production cy...

Claims

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Application Information

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IPC IPC(8): B23P15/00
CPCB23P15/00
Inventor 成陆祥徐东李艳英葛波李兴品
Owner GUIZHOU ANDA AVIATION FORGING
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