Unlock instant, AI-driven research and patent intelligence for your innovation.

Fine grain strengthening forming method of high-strength aluminum alloy ring piece

A fine-grain strengthening, aluminum alloy technology, applied in metal rolling, engine components, furnace types, etc., can solve problems such as reduction

Pending Publication Date: 2022-04-12
GUIZHOU ANDA AVIATION FORGING
View PDF0 Cites 0 Cited by
  • 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 fine-grain strengthening forming method for high-strength aluminum alloy rings, which will 2 Fully crushing and dissolving of Cu particles achieves the purpose of refining grains, improving its comprehensive mechanical properties and reducing anisotropy

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Fine grain strengthening forming method of high-strength aluminum alloy ring piece

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0016] Implement the fine-grain strengthening forming method of a high-strength aluminum alloy ring according to the present invention, taking 2219 aluminum alloy as an example, the steps are as follows:

[0017] Heat the 2219 aluminum alloy ingot to 490-510°C, adopt the seven-upsetting and six-drawing multi-directional forging process to open the billet, the single upsetting deformation is 50-65%, and the final forging temperature is not lower than 400°C; Then, the billet is rounded and punched to obtain a 2219 aluminum alloy blank;

[0018] Heat the punched 2219 aluminum alloy blank to 220-260°C, hold it for a period of time, expand the hole and make the blank, the deformation is 50-70%, and the final forging temperature is not lower than 160°C to obtain a 2219 aluminum alloy ring billet ;

[0019] Put the 2219 aluminum alloy ring billet into the furnace, heat it to 535-542°C, hold it for 2.5-3.5 hours, and perform high-temperature annealing;

[0020] Cooling the 2219 alum...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a fine grain strengthening forming method of a high-strength aluminum alloy ring piece, which is characterized in that a low-temperature blank making and high-temperature annealing method and a low-temperature ring rolling and high-temperature solid solution method are adopted, coarse Al2Cu particles are fully crushed through a low-temperature deformation and strong shearing effect, dynamic recovery is inhibited by utilizing a low-temperature condition, a high-density element diffusion dislocation channel is generated, and the high-strength aluminum alloy ring piece is formed. And in the subsequent high-temperature annealing process, the crushed Al2Cu particles are fully dissolved, and then the mechanical property of the ring piece is improved. And the method is particularly suitable for forming the Al-Cu series high-strength aluminum alloy ring piece.

Description

technical field [0001] The invention relates to a ring forming method, in particular to an Al-Cu series high-strength aluminum alloy ring grain refinement forming method. Background technique [0002] Al-Cu series high-strength aluminum alloy is a kind of heat treatment strengthened aluminum alloy. The alloy has the characteristics of high specific strength, good mechanical properties at low temperature and high temperature, and good welding performance, and has been widely used in the aerospace field. The Al-Cu high-strength aluminum alloy represented by 2219 aluminum alloy has a copper content of 5.8% to 6.8%, which exceeds the maximum solubility of copper atoms in the aluminum matrix and will form Al 2 Cu particles. The ingot size required for large rings is large, the cooling rate is slow, and a large amount of coarse Al will appear 2 Cu particles agglomerate. The manufacturing process of conventional rings is thermal deformation. Since the aluminum matrix is ​​soft ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C22F1/057C21D9/40B21K1/76B21H1/06
Inventor 强超
Owner GUIZHOU ANDA AVIATION FORGING