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. 08, 2011
Filed:
Mar. 07, 2007
Masatoshi Yoshida, Kobe, JP;
Haruyuki Konishi, Kobe, JP;
Takeo Sakurai, Moka, JP;
Kobe Steel, Ltd., Kobe-shi, JP;
Abstract
The invention provides a press forming method of an aluminum alloy sheet and a press device capable of forming a large panel which is an automobile body outer panel such as a luggage outer panel and the like and is of a shape difficult in forming. In a method of press forming of the aluminum alloy sheetinto a formed product panel having non-contact outer peripheral partsnot contacting the punch for forming the center part of the panel until the vicinity of the bottom dead point, the first punch forming the center partof the panel and the second punchcapable of shifting independently with respect to the first punch are provided, and these punches are interlocked with each other so that the second punchis made contact the non-contact outer peripheral partsof the sheet with the relative position of the second punchwith respect to the first punchbeing shifted to the diceside.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile