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Aluminum alloys with enhanced formability and associated methods

A technology of aluminum alloy casting ingots and aluminum alloy products, which is applied to the combination of multiple record carriers, rigid containers, combined records, etc., can solve the problems of lack of formability, achieve the effect of reducing the incidence of cracks and good performance

Inactive Publication Date: 2019-01-11
NOVELIS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Furthermore, since the BR step is the last step in the forming process, the metal is already in a highly deformed state with little formability to accommodate further strain

Method used

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  • Aluminum alloys with enhanced formability and associated methods
  • Aluminum alloys with enhanced formability and associated methods
  • Aluminum alloys with enhanced formability and associated methods

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Embodiment Construction

[0017] The subject matter of examples of the present invention is described herein in specific manner to satisfy statutory requirements, but this description is not necessarily intended to limit the scope of the claims. The claimed subject matter can be embodied in other ways, can contain different elements or steps, and can be used in combination with other present or future technologies. Unless an order of individual steps or an arrangement of elements is explicitly described, this specification should not be construed as implying any particular order or arrangement among or between individual steps or elements.

[0018] In this specification, reference is made to alloys identified by aluminum industry designations such as "series". For the numerical designation system most commonly used to name and identify aluminum and its alloys, see International Alloy Designations and Chemical Composition Limits for Wrought Aluminum and Wrought Aluminum Alloys, both published by the Alu...

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Abstract

Disclosed is an aluminum alloy for aluminum bottle applications, including methods of producing highly shaped aluminum products, such as bottles or cans, comprising the aluminum alloy. In some cases,the aluminum alloy has improved high strain rate formability at elevated temperatures and improved earing, which results in reduced spoilage rates. In one non-limiting example, the disclosed alloys have stable values greater than or equal to 0.035, where epsilon stable = epsilon F- epsilon S and epsilon S represents the strain at which work hardening stage IV starts and epsilon F represents the strain at which diffuse necking ends. In some cases, the disclosed alloys have an earing balance from about -3.5% to about 2 % and a mean earing of less than or equal to 5.5%.

Description

[0001] References to related applications [0002] This application claims the benefit of U.S. Provisional Application No. 62 / 330,554, entitled ALUMINUM ALLOYS WITH ENHANCED FORMABILITY AND ASSOCIATED METHODS, filed May 2, 2016, which The contents are hereby incorporated by reference in their entirety. technical field [0003] The present invention relates to aluminum alloys having enhanced formability and methods of producing highly formed aluminum products such as bottles or cans. Background technique [0004] Many modern methods of making aluminum cans or bottles require highly formable aluminum alloys. For shaped bottles, the manufacturing process usually involves first producing the cylinder using a stretch and wall ironing (DWI) process. The resulting cylinder is then formed into a bottle shape using, for example, a series of full-body necking steps, blow molding or other mechanical forming, or a combination of these processes. The requirements for any alloy used i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C21/06C22C21/08C22F1/047
CPCB22D7/005C22C21/06C22C21/08C22F1/047G06F16/68G06F16/93B65D1/0207C22F1/04B65D1/165G11B27/002G11B27/031G11B2220/2516G11B2220/412H04H60/05H04H60/27H04H60/58
Inventor J.吴Y.王W.温J.利格
Owner NOVELIS INC
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