A kind of forging process of aluminum alloy parts

A technology for aluminum alloy parts and aluminum alloys, which is applied in the field of material thermal processing, can solve the problems of high energy consumption and long production cycle after repeated heating, and achieve the effect of reducing artificial aging time, reducing production cycle and eliminating heat treatment process.

Active Publication Date: 2021-09-21
WUHAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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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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  • A kind of forging process of aluminum alloy parts
  • A kind of forging process of aluminum alloy parts
  • A kind of forging process of aluminum alloy parts

Examples

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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 thermal processing of materials, and in particular relates to a forging process of aluminum alloy parts. A forging process for aluminum alloy parts, characterized in that it includes the following steps: S1, heating the aluminum alloy billet to the solid solution temperature in a heating device, and the heating and holding time is determined according to the wall thickness of the aluminum alloy billet, according to the thickness of the aluminum alloy billet Each wall thickness of 1mm is heated and kept for 20 minutes; S2, under-aging heat treatment; S3, the aluminum alloy billet after under-aging heat treatment is heated and kept at 100-300°C with the forging die; and the final forging die is preheated; S4, the steps In S3, the aluminum alloy blank after heating and heat preservation is subjected to isothermal die forging at 100-300° C.; in S5, the forged piece in step S4 is cooled, trimmed, and then machined to obtain an aluminum alloy part. The process can reduce the production cycle 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 Patents(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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