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.:
Date of Patent:
May. 05, 2020
Filed:
Mar. 28, 2018
Uacj Corporation, Tokyo, JP;
Akifumi Hasegawa, Aichi, JP;
Hiroki Tanaka, Aichi, JP;
UACJ CORPORATION, Tokyo, JP;
Abstract
An aluminum-alloy clad material includes a skin layer clad to and covering at least one surface of a core layer. The core layer is composed of an aluminum alloy containing Cu: 3.8-4.9 mass %, Mg: 1.2-1.8 mass % and Mn: 0.3-0.9 mass %. The core layer has an area number density of microvoids that have a circle-equivalent diameter of 0.5 μm or greater that is 100/mmor less. The skin layer has an Al purity of 99.5 mass % or greater. A method of manufacturing a wrought material from such an aluminum-alloy clad material includes heating the wrought material to the solution heat treatment temperature of the core layer at a temperature-rise rate of 50° C.-200° C./h.