Quenching state restoring-forming integrated process for aluminum alloy

A technology of aluminum alloy and aluminum alloy sheet, which is applied in the direction of forming tools, metal processing equipment, manufacturing tools, etc., can solve the problems that complex component processing cannot be practically applied, and achieves the convenience of shape and property collaborative control, low heating temperature, and improved quality Effect

Inactive Publication Date: 2018-05-18
CENT SOUTH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method is only suitable for small samples, and it cannot be practically applied to complex components for processing.

Method used

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  • Quenching state restoring-forming integrated process for aluminum alloy
  • Quenching state restoring-forming integrated process for aluminum alloy

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] The 7B04 aluminum alloy is solid-solution treated and water-quenched in an air circulation resistance furnace to obtain an aluminum alloy sheet; then parked at room temperature for 2 weeks, and then non-isothermally heated to 150°C at 15°C / min in an aging furnace, and the plate is taken out to room temperature Carry out hardness test and tensile test after cooling.

Embodiment 2

[0030] 7B04 aluminum alloy is solid solution treated in an air circulation resistance furnace and water quenched to obtain aluminum alloy plate; then parked at room temperature for 2 weeks, and then non-isothermally heated to 180°C at 15°C / min in an aging furnace, and the plate is taken out to room temperature Carry out hardness test and tensile test after cooling.

Embodiment 3

[0032] The 7B04 aluminum alloy is solid-solution treated and water-quenched in an air circulation resistance furnace to obtain an aluminum alloy plate; then parked at room temperature for 2 weeks, and then non-isothermally heated to 210°C at 15°C / min in an aging furnace, and the plate is taken out to room temperature Carry out hardness test and tensile test after cooling.

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PUM

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Abstract

The invention provides a quenching state restoring-forming integrated process for an aluminum alloy. An aluminum alloy plate placed at room temperature is subjected to non-isothermal heating with theheating speed larger than 15 DEG C / min to be heated to 150-210 DEG C, and then is immediately transferred onto a forming device within 1-2 min, and a formed component is subjected to aging heat treatment reinforcement within 1 day. By means of the process, the aluminum alloy stored at room temperature for a long time can restore to the state close to the quenching state, strength is remarkably lowered, the forming capacity is improved, and the integrated process is favorable for coordinated control of the high-strength aluminum alloy.

Description

Technical field [0001] The invention belongs to the technical field of heat treatment and forming of aluminum alloys, and particularly relates to an aluminum alloy quenched state recovery-forming integrated process that can significantly reduce the natural age hardening effect. Background technique [0002] Aluminum alloy has low density and high specific strength, and it has been widely used in aerospace and automotive fields. In order to reduce weight, a large number of important structural parts such as the rocket's fuel tank, the skin and wall panels of the aircraft fuselage, and the car body are made of aluminum alloy. At present, the aluminum alloys used in the industry to manufacture key components are mainly heat-treated and strengthened deformed aluminum alloys, such as 2xxx series, 6xxx series and 7xxx series aluminum alloys. The strength of these aluminum alloys is mainly contributed by the precipitated phases formed by the solute atoms during the aging process after ...

Claims

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Application Information

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IPC IPC(8): C22F1/04B21C37/02B21D37/16
CPCC22F1/04B21C37/02B21D37/16
Inventor 刘春辉湛利华徐凌志马培培徐永谦
Owner CENT SOUTH UNIV
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