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:
Nov. 07, 2000
Filed:
Oct. 08, 1997
Makoto Fujita, Higashihiroshima, JP;
Nobuo Sakate, Hiroshima, JP;
Shoji Hirabara, Hiroshima, JP;
Yukio Yamamoto, Hiroshima, JP;
Mazda Motor Corporation, Hiroshima-Ken, JP;
Abstract
This invention is to provide a magnesium alloy cast material capable of manufacturing a wheel, a large-sized forged piece such as wheel having properties equivalent to those of aluminum molten forged member, directly from the state of continuous cast material. The magnesium alloy cast material is a nearly intermediate alloy composition between conventional AZ61 alloy and AZ80 alloy, comprising Al: 6.2 to 7.6 wt. %, Mn: 0.15 to 0.4 wt. %, Zn: 0.4 to 0.8 wt. % and Mg: balance, and casting by defining the mean crystal grain size under 200 .mu.m. The forgeability is excellent, and when forged, a forged piece superior in mechanical properties and corrosion resistance to the aluminum molten forged member can be manufactured.