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Forging and cogging technique for super-sized aluminum alloy ingots

A technology of casting aluminum alloy ingots and super-large specifications, which is applied in the field of forging and forming. It can solve the problems of complicated process flow, many process control elements, and difficulty in ensuring the forming structure and performance of forgings, so as to improve product qualification rate, improve consistency, The effect of meeting the development needs

Active Publication Date: 2017-03-29
CAPITAL AEROSPACE MACHINERY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the process of multi-directional forging deformation, due to the complicated process flow and many process control elements, it is difficult to ensure that the forging has excellent structure and performance while forming

Method used

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  • Forging and cogging technique for super-sized aluminum alloy ingots
  • Forging and cogging technique for super-sized aluminum alloy ingots
  • Forging and cogging technique for super-sized aluminum alloy ingots

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Ingot and tool heating: heat the homogenized Φ1205×2590mm large-diameter 2219 aluminum alloy round ingot and the tools in contact with the ingot during the forging process. Among them, the heating temperature of the ingot is 459°C, and the holding time is 40h; the lower hammer anvil, upsetting plate, punch, mandrel and billet are heated in the same furnace, and the upper hammer anvil, reclaiming tongs, manipulator jaws and other tools are used Fake material preheating.

[0040] Multi-directional forging:

[0041] After heating the aluminum alloy round ingot, perform multi-directional forging to obtain a round billet for punching; the specific sequence includes:

[0042] Define the Z direction of the aluminum alloy round ingot as the axial height direction of the aluminum alloy round ingot; the X direction and the Y direction are orthogonal to each other and perpendicular to the Z direction;

[0043] (2.1) Z-direction upsetting: upsetting the ingot along the Z-directio...

Embodiment 2

[0067] Ingot and tool heating: heat the homogenized Φ1260×2890mm large-diameter 2219 aluminum alloy round ingot and the tools in contact with the ingot during the forging process. Among them, the heating temperature of the ingot is 462°C, and the holding time is 41 hours; the lower hammer anvil, upsetting plate, punch, mandrel and billet are heated in the same furnace, and the upper hammer anvil, reclaiming tongs, manipulator jaws and other tools are used Fake material preheating.

[0068] Multi-directional forging:

[0069] After heating the aluminum alloy round ingot, perform multi-directional forging to obtain a round billet for punching; the specific sequence includes:

[0070] Define the Z direction of the aluminum alloy round ingot as the axial height direction of the aluminum alloy round ingot; the X direction and the Y direction are orthogonal to each other and perpendicular to the Z direction;

[0071] (2.1) Z-direction upsetting: upsetting the ingot along the Z-dir...

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Abstract

The invention belongs to the technical field of forging forming, in particular to a forging and cogging technique for super-sized aluminum alloy ingots. The technical scheme provides the forging and cogging technique for super-sized aluminum alloy ingots and comprises following steps: utilizing multi-directional forging technology; controlling deformation of 2219 aluminum alloy ingots through controlling forging temperature, single-time forging ratio, cumulative forging ratio, deformation rate and ratios of width to height; refining grains of material and improving structure of material such that uniformity control over structure and performance of super-large diameter 2219 aluminum alloy rolled compact can be achieved, thereby improving uniformity among product quality and product qualification ratio; and the need for developing aerospace products is satisfied.

Description

technical field [0001] The invention belongs to the technical field of forging and forming, and in particular relates to a forging blanking process method of super-large-sized aluminum alloy casting ingots. Background technique [0002] With the rapid development of my country's aerospace industry, the demand for large-diameter, high-performance 2219 aluminum alloy ingots is particularly urgent, especially for large-diameter 2219 aluminum alloy ingots. The stability of the internal quality and casting defects in the process are difficult to control, which increases the complexity of the deformation of different parts during the ingot forging process, and the maneuverability of the ingot forging billet opening process is even worse, and the difficulty of forging is doubled. Therefore, what kind of forging deformation method to use and how to maximize the deformation of the billet so that it can fully and uniformly refine the casting structure are related to the mechanical prop...

Claims

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Application Information

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IPC IPC(8): B21J5/06B21J5/08
CPCB21J5/06B21J5/08
Inventor 张文学徐坤和张国方刘东王恒强丁鹏飞王国庆周世杰许文娟阳代军呼啸徐鹤洋
Owner CAPITAL AEROSPACE MACHINERY
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