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Aluminum alloy part forging process

A technology of aluminum alloy parts and aluminum alloy, which is applied in the field of thermal processing of materials, can solve the problems of high energy consumption for multiple heating, long production cycle, etc., and achieve the effect of reducing the time of artificial aging, reducing the production cycle, and rapid hot forming

Active Publication Date: 2021-03-16
WUHAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In view of the problems that the current aluminum alloy forging process has a long production cycle and high energy consumption for repeated heating, the purpose of the present invention is to provide a forging process for aluminum alloy parts, which can reduce the production cycle and improve production efficiency

Method used

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  • Aluminum alloy part forging process

Examples

Experimental program
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Effect test

Embodiment 1

[0028] A kind of forging technology of aluminum alloy part, for the simple part that only needs to carry out die forging once, comprises following steps (as figure 2 shown):

[0029] S1, heating the aluminum alloy billet to the solution temperature in the heating equipment (for solution treatment), the heating and holding time is determined according to the wall thickness of the aluminum alloy billet, and the heat preservation is 20min according to the thickness of each aluminum alloy billet of 1mm; The aluminum alloy is 6000 series aluminum alloy; the heating time and holding time are controlled within 90 minutes;

[0030] S2. Underaging heat treatment is performed on the aluminum alloy blank, the temperature is controlled at 100-150°C, and the time is controlled at 2-8h;

[0031] S3. Heat the aluminum alloy billet after underaging treatment at 200-250°C for 5-10min, and preheat the forging die to 200°C;

[0032] S4. Performing isothermal die forging at 100-300° C. to fina...

Embodiment 2

[0037] A kind of forging process of aluminum alloy parts, for the complicated piece that needs to carry out multiple die forgings, comprises the following steps (such as image 3 shown):

[0038] S1. Perform solid solution treatment on the aluminum alloy billet in the heating equipment. The heating and holding time is determined according to the wall thickness of the aluminum alloy billet, and is heated and held for 20 minutes according to the wall thickness of the aluminum alloy billet of 1mm; the aluminum alloy is a 6000 series aluminum alloy ;

[0039] S2. Heating the mold to the forging temperature, cooling the aluminum alloy billet to a pre-forging temperature of 450° C., and pre-forging the aluminum alloy billet after solution treatment;

[0040] S3. Perform underaging heat treatment on the pre-forged parts, the temperature is 100-150°C, and the time is 2-8h;

[0041] S4. Keep the parts after underaging treatment at 200-250°C for 5-10 minutes, and preheat the final for...

Embodiment 3

[0049] A forging process of an aluminum alloy part, comprising the following steps: when the blank material of the aluminum alloy is 6082 aluminum alloy, the specific forging process and parameters are as follows:

[0050] S1. Perform solid solution treatment on the aluminum alloy billet in the heating equipment, the temperature is 535°C, the heating and holding time is determined according to the size of the billet, and the heating and holding time is 20 minutes per wall thickness of 1 mm;

[0051] S2. Pre-forging the aluminum alloy blank after solution treatment at 450° C.;

[0052] S3. Perform underaging heat treatment on the pre-forged parts, the temperature is 120±5°C, and the time is 4-6h;

[0053] S4. The parts after under-aging treatment are kept at 200±5°C for 5-10 minutes, and the final forging die is preheated to 200°C;

[0054] S5. Performing isothermal die forging at 100-300° C. for final forging of the parts after underaging treatment;

[0055] S6. After the fo...

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Abstract

The invention belongs to the field of material heat machining, and particularly relates to an aluminum alloy part forging process. The aluminum alloy part forging process is characterized by comprising the following steps that S1, an aluminum alloy blank is heated to the solid solution temperature in heating equipment, the heating and heat preserving time is determined according to the wall thickness of the aluminum alloy blank, and heating and heat preserving are conducted for 20 minutes according to the condition that the wall thickness of each wall of the aluminum alloy blank is 1 mm; S2, under-aging heat treatment is carried out; S3, the aluminum alloy blank subjected to under-aging heat treatment and a forging die are heated and subjected to heat preservation together at the temperature of 100-300 DEG C, a finish forging die is pre-heated; S4, the aluminum alloy blank heated and subjected to heat preservation in the step S3 is subjected to isothermal die forging forming at the temperature of 100-300 DEG C; and S5, the forge piece obtained in the step S4 is cooled and then trimmed, then machining treatment is conducted, and the aluminum alloy part is obtained. The process can shorten the production period and improve the production efficiency.

Description

technical field [0001] The invention belongs to the field of thermal processing of materials, and in particular relates to a forging process of aluminum alloy parts. Background technique [0002] Aluminum alloy is the most widely used non-ferrous metal material in the industry, and is widely used in aerospace, marine vehicles and other machinery manufacturing industries. In the automobile manufacturing industry, aluminum alloys are usually used to achieve the purpose of reducing the weight of automobile structures, and aluminum alloy forgings that can be strengthened by heat treatment are also widely used in automobile manufacturing. At present, the die forging forming process of aluminum alloy is relatively long, and the common aluminum alloy die forging forming process mostly includes the following steps: heat treatment before forging, forging forming, solution treatment, and aging treatment. In the production process of heat treatable aluminum alloy, homogenization heat ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21J5/00B21J5/02B21J1/06C22F1/04
CPCB21J1/06B21J5/002B21J5/02C22F1/04
Inventor 华林胡志力柳勇志
Owner WUHAN UNIV OF TECH
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