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Aging process of al‑mg‑si alloy after bending and deformation

An alloy and aging technology, applied in the field of alloys, can solve problems such as affecting strength, achieve the effect of improving performance and meeting high performance requirements

Active Publication Date: 2017-09-22
SHANGHAI UNISON ALUMINUM PRODS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The aging strengthening principle of Al-Mg-Si alloys is mainly α (Al-based supersaturated solid solution) → GP area → β″ → β′ → β, but the dislocations generated by bending affect the strength of the alloy after subsequent aging

Method used

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  • Aging process of al‑mg‑si alloy after bending and deformation
  • Aging process of al‑mg‑si alloy after bending and deformation
  • Aging process of al‑mg‑si alloy after bending and deformation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Test equipment: aluminum extrusion machine-2200T, sawing machine for finished products, punching and bending machine, aging electric furnace, band saw, horizontal milling machine, 20T universal testing machine.

[0020] experiment procedure:

[0021] 1) The 6082 alloy is extruded into a bumper beam profile through a 2200T extrusion machine;

[0022] 2) sawing and cutting to a specific length by a finished product sawing machine;

[0023] 3) Bending and forming on the stamping bending machine;

[0024] 4) Use the same aging electric furnace to carry out the different aging test conditions of the original process (A) and the present invention (B-J) respectively;

[0025] 5) Use a band saw and a horizontal milling machine to make tensile samples for the aging products respectively for performance testing; according to the GB / T16865 standard, 3-10 samples are prepared for each group;

[0026] 6) Use a 20T universal testing machine for performance testing, and the measure...

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Abstract

The invention discloses an aging process for AI-Mg-Si based alloy after bent deformation, comprising the procedure of carrying out aging treatment on the AI-Mg-Si based alloy in conditions of 160 DEG C for 9 hours and 180 DEG C for 2 hours. The invention provides the aging process which can promote performance of the AI-Mg-Si based alloy after bent deformation, so as to meet the high performance requirement of products.

Description

technical field [0001] The invention belongs to the field of alloys, in particular to an aging process after bending and deformation of Al-Mg-Si alloys. Background technique [0002] The lightweight of automobiles is developing rapidly. Aluminum alloy has the characteristics of moderate strength, light weight, and easy forming, which is suitable for lightweight design of automobiles. [0003] The natural aging of the 6082 brand alloy is relatively strong, and the hardness increases rapidly; in the T4 state, the alloy needs a large external force to complete the bending when bending. error, forming a dislocation-rich region. The aging strengthening principle of Al-Mg-Si alloys is mainly α (Al-based supersaturated solid solution) → GP area → β″ → β′ → β, but the dislocations generated by bending affect the strength of the alloy after subsequent aging. [0004] At present, the existing standards for 6082 alloy grades include: (1) GMW15665 standard: T6 performance, tensile str...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22F1/047
CPCC22F1/047
Inventor 罗世兵李文通
Owner SHANGHAI UNISON ALUMINUM PRODS