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Aluminum alloy plate body composite-solid solution quenching integrated thermoforming method

An aluminum alloy plate, solution quenching technology, applied in heat treatment furnaces, heat treatment equipment, furnace types, etc., can solve problems such as work hardening and limited forming, eliminate work hardening, achieve severe plastic deformation, volume and footprint small area effect

Active Publication Date: 2020-08-04
SHANGHAI JIAO TONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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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

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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 body composite-solid solution quenching integrated thermoforming method, and relates to the technical field of metal forming. The method comprises the following steps of putting an aluminum alloy plate body into a thermal treatment furnace at a high temperature solid solution stage, setting the temperature to be 500 to 550DEG C and the heating rate to be 10DEG C / min, after the temperature is stabilized, setting the solid solution heat preservation time to be 30 to 60min, and performing multi-pass solid solution plate body forming; controlling thesingle-pass reduced quantity to be within 0.5mm, the interval between passes is greater than or equal to 2min, then quickly taking out the aluminum alloy plate body, and the transfer time is less than or equal to 20s; putting the aluminum alloy plate body into a water-cooling mold for rapid quenching and forming; and then performing an artificial aging step, wherein the artificial aging step specifically comprises the step of treating the rapidly quenched and formed aluminum alloy plate body at 175DEG C for 18 to 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 Applications(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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