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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 12654222 B1

PDFFull Text
Date of Patent:
Jun. 16, 2026

Filed:

Apr. 13, 2021

Aluminum alloy molded body and production method therefor

Applicants:

Nippon Light Metal Company, Ltd., Tokyo, JP;

Toyo Aluminium Kabushiki Kaisha, Osaka, JP;

Inventors:

Masato Yatsukura, Tokyo, JP;

Takashi Nagao, Shizuoka, JP;

Tsuguharu Tashiro, Shizuoka, JP;

Jun Kusui, Osaka, JP;

Assignees:

NIPPON LIGHT METAL COMPANY, LTD., Tokyo, JP;

TOYO ALUMINIUM KABUSHIKI KAISHA, Osaka, JP;

Attorney:

RANKIN, HILL & CLARK LLP

Primary Examiner:

John A Hevey

Int. Cl.
CPC ...
B22F 1/00 (2022.01); B22F 1/05 (2022.01); B22F 10/28 (2021.01); B22F 10/64 (2021.01); B33Y 10/00 (2015.01); B33Y 40/20 (2020.01); B33Y 70/00 (2020.01); B33Y 80/00 (2015.01); C22C 21/00 (2006.01);
U.S. Cl.
CPC ...
B22F 1/00 (2013.01); B22F 1/05 (2022.01); B22F 10/28 (2021.01); B22F 10/64 (2021.01); B33Y 10/00 (2014.12); B33Y 40/20 (2020.01); B33Y 70/00 (2014.12); B33Y 80/00 (2014.12); C22C 21/00 (2013.01); B22F 2201/10 (2013.01); B22F 2301/052 (2013.01); B22F 2304/10 (2013.01); B22F 2998/10 (2013.01);
Abstract

The purpose of the present invention is to provide an aluminum alloy molded body that has excellent thermal stability and does not contain a rare earth element, and to provide a production method for the same. More specifically, the present invention provides an aluminum alloy molded body that has a high degree of hardness even at 200° C., and a method which enables efficient production of the same even if the aluminum alloy molded body has a complicated shape. An aluminum alloy laminated molded body according to the present invention, which is molded using an additive manufacturing method, is characterized in that: the raw material therefor is an aluminum alloy material containing 2-10 mass % of a transition metal element that forms a eutectic crystal with Al, with the remainder being Al and unavoidable impurities; the relative density thereof is at least 98.5%; a metal structure is composed of a primary crystal α (Al) and a compound composed of Al and the transition metal element; and the spacing of the compound in a region excluding the boundary of a melt pool is no more than 200 nm.

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