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Method of roll-forming high-strength aluminum alloy and roll-formed product using same

A technology for aluminum alloys and aluminum alloy plates, applied in the field of roll forming high-strength aluminum alloys and roll forming products using the same, can solve the problems of low resistance to stress corrosion cracking, lack of formability of aluminum alloys, etc.

Inactive Publication Date: 2018-06-26
HYUNDAI MOTOR CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] However, there is a problem that aluminum alloys lack desired formability due to high strength in the cold forming process and very low stress corrosion cracking resistance due to residual stress

Method used

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  • Method of roll-forming high-strength aluminum alloy and roll-formed product using same
  • Method of roll-forming high-strength aluminum alloy and roll-formed product using same
  • Method of roll-forming high-strength aluminum alloy and roll-formed product using same

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Embodiment Construction

[0033] Reference will now be made in detail to various embodiments of the invention, examples of which are illustrated in the accompanying drawings and described below. While the invention will be described in conjunction with exemplary embodiments, it will be understood that present description is not intended to limit the invention to those exemplary embodiments. On the contrary, the invention is intended to cover not only the exemplary embodiments but also various alternatives, modifications, equivalents and other alternatives, modifications, equivalents and others, which may be included within the spirit and scope of the invention as defined by the appended claims. implementation plan.

[0034] Before describing exemplary embodiments of the present invention, various aspects of the present invention are directed to providing stress relief and formability improvement to bent portions during roll forming of 7000 series aluminum alloy sheets. Generally, after solution heat t...

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Abstract

The invention relates to a method of roll-forming high-strength aluminum alloy and a roll-formed product using the method. Specifically, the invention provides a method for roll forming of aluminum alloy through forming square bars by processing aluminum alloy plates. The method may include processing an aluminum alloy plate to form a square bar, pressing the plate so that deformation begins in across section thereof; and forming the square bar having at least one bent portion by completion of the deformation, wherein the method further includes partially performing a heat treatment on the bent portion before forming the square bar.

Description

[0001] Cross References to Related Applications [0002] This application claims priority from Korean Patent Application No. 10-2016-0173538 filed on December 19, 2016, the entire contents of which are hereby incorporated by reference for all purposes. technical field [0003] Exemplary inventions relate to methods of roll forming high-strength aluminum alloys and roll-formed products using the same, and more particularly to methods of locally softening and roll-forming high-strength aluminum alloys configured to pass during the forming process The formability of the alloy is improved by performing a localized heat treatment process on the bent portion where the stress is concentrated, and the stress corrosion cracking resistance is improved by removing internal residual stress in the bent portion, and the present invention also relates to a roll formed product using the method. Background technique [0004] Aluminum alloys are usually expressed as four-digit numbers in the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21D35/00C22F1/053
CPCB21D35/002C22F1/053B21D5/008B21D5/08B21D5/14B21D37/16B21D53/88C22C21/10C22F1/057
Inventor 吴奎焕
Owner HYUNDAI MOTOR CO LTD