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:
Sep. 13, 1994
Filed:
Sep. 29, 1992
Yasuo Kamitsuma, Mito, JP;
Yusaku Nakagawa, Hitachi, JP;
Yoshihiro Kobayashi, Hitachi, JP;
Shoichi Nakashima, Hitachi, JP;
Tadashi Iizuka, Ashikaga, JP;
Keiichi Nakamura, Tokyo, JP;
Hideo Shikata, Matsudo, JP;
Hitachi, Ltd., Tokyo, JP;
Hitachi Powdered Metals Co., Ltd., Matsudo, JP;
Abstract
A method of manufacturing sintered Al-Si series alloy parts having complex configurations such as scroll shaped parts wherein Al-Si series alloy powder solidified via rapid cooling prepared by adding effective components such as Si, Cu, Mg, Fe, Mn, Zr and Ce to Al is compression molded, the molded body is sintered by heating via an electrical current conduction in a form of a plasma discharge and then the sintered body is worked by pressing, thereby the parts having complex configurations of light weight, high mechanical strength and toughness is manufactured with a simple installation and reduced processing manhours, and with a high efficiency and at a low cost.