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An aluminum alloy plate composite-solution quenching integrated hot forming method

A solution quenching, aluminum alloy plate technology, applied in heat treatment furnaces, heat treatment equipment, furnaces, etc., can solve the problems of work hardening, forming limitation, etc., to eliminate work hardening, realize plastic deformation, small volume and footprint Effect

Active Publication Date: 2021-11-09
SHANGHAI JIAO TONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, it describes the aluminum alloy stamping forming process, which faces the in-plane forming of the aluminum alloy sheet, and there is no great deformation in the thickness direction. The good plasticity of the alloy is not enough to realize the large deformation of the aluminum alloy sheet, and the work hardening will occur with the increase of the strain under one-time forming, which will cause the forming to be limited

Method used

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  • An aluminum alloy plate composite-solution quenching integrated hot forming method
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Embodiment 1

[0032] An aluminum alloy plate body composite-solution quenching integrated hot forming method, the specific steps are as follows:

[0033] Such as image 3 As shown, it is the forming process route designed by the present invention for complex high-rib parts, and the process route is explained by taking aluminum alloy 2219 as an example;

[0034] The process route for complex parts with high ribs and thin webs uses the multi-pass plate forming in the solid solution stage + the final quenching forming process to realize the forming of such parts. For this process, the heating method is selected as induction heating;

[0035] First, heat the sheet and the mold to 535°C by induction heating, and the heating rate is 10°C / min. After the temperature is stable, perform the first pass of sheet forming, and the single pass reduction is controlled within 0.5mm;

[0036] After the end of one pass, the interval time is 2 minutes. During this period, the aluminum alloy undergoes static r...

Embodiment 2

[0040] An aluminum alloy plate body composite-solution quenching integrated hot forming method, the specific steps are as follows:

[0041] Such as image 3 As shown, it is the forming process route designed by the present invention for complex high-rib parts, and the process route is explained by taking aluminum alloy 2219 as an example;

[0042] The process route for complex parts with high ribs and thin webs uses the multi-pass plate forming in the solid solution stage + the final quenching forming process to realize the forming of such parts. For this process, the heating method is selected as induction heating;

[0043] First, heat the sheet and the mold to 500°C by induction heating, and the heating rate is 10°C / min. After the temperature is stable, perform the first pass of sheet forming, and the single-pass reduction is controlled within 0.5mm;

[0044] After the end of one pass, the interval time is 2 minutes. During this period, the aluminum alloy undergoes static r...

Embodiment 3

[0048] An aluminum alloy plate body composite-solution quenching integrated hot forming method, the specific steps are as follows:

[0049] Such as image 3 As shown, it is the forming process route designed by the present invention for complex high-rib parts, and the process route is explained by taking aluminum alloy 2219 as an example;

[0050] The process route for complex parts with high ribs and thin webs uses the multi-pass plate forming in the solid solution stage + the final quenching forming process to realize the forming of such parts. For this process, the heating method is selected as induction heating;

[0051] First, heat the sheet and the mold to 550°C by induction heating, and the heating rate is 10°C / min. After the temperature is stable, perform the first pass of sheet forming, and the single-pass reduction is controlled within 0.5mm;

[0052] After the end of one pass, the interval time is 2 minutes. During this period, the aluminum alloy undergoes static r...

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Abstract

The invention discloses an aluminum alloy plate composite-solution quenching integrated thermoforming method, which relates to the technical field of metal forming, including putting the aluminum alloy plate body into a heat treatment furnace at a high-temperature solid solution stage, setting The temperature is 500-550°C, and the heating rate is 10°C / min. After the temperature is stable, set the solid solution holding time for 30-60min to carry out multi-pass solid solution plate forming; the single-pass reduction is controlled within 0.5mm , the interval between passes is greater than or equal to 2min, and then the aluminum alloy plate body is quickly taken out, and the transfer time is less than or equal to 20s; it is put into a water-cooled mold for rapid quenching and forming; then the artificial aging step is carried out, and the artificial aging step specifically includes The rapidly quenched aluminum alloy plate body is treated at 175° C. for 18-36 hours.

Description

technical field [0001] The invention relates to the technical field of metal forming, in particular to an aluminum alloy plate composite-solution quenching integrated thermal forming method. Background technique [0002] Aluminum alloys have high specific strength, stiffness, and good corrosion resistance, and are widely used in the automotive and aerospace industries. However, aluminum alloys have problems of poor room temperature plasticity and shape distortion during heat treatment. [0003] Lin Jianguo of Imperial College London proposed a composite forming process that combines heat treatment and hot forming of aluminum alloy, that is, a new integrated hot forming-quenching process (HFQ). The forming process of this process is to quickly transfer the completely solid-solution aluminum alloy to the water-cooled mold, quickly close the mold and form it, keep the mold closed state after forming to complete the quenching of the part in the mold, and finally perform aging tr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22F1/04C21D9/00
CPCC21D9/0081C22F1/04
Inventor 何霁冯彬李淑慧赵亦希于忠奇
Owner SHANGHAI JIAO TONG UNIV
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