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:
Aug. 20, 1996
Filed:
Dec. 20, 1994
Hiroyuki Horimura, Saitama, JP;
Kenji Okamoto, Saitama, JP;
Masahiko Minemi, Saitama, JP;
Toshihiko Kaji, Hyogo, JP;
Yoshinobu Takeda, Hyogo, JP;
Yoshishige Takano, Hyogo, JP;
Sumitomo Electric Industries, Ltd., Osaka, JP;
Honda Giken Kogyo Kabushiki Kaisha, Tokyo, JP;
Abstract
In a powder forging process, a heated green compact is placed in a stationary die and subjected to a press-forging carried out mainly to reduce the thickness thereof by cooperation of the stationary die with a movable die. The press-forging is performed at two pressing steps. After placement of the green compact into the concave molding portion of the stationary die, the pressing step were carried out. Thus, it is possible to produce a forged product having a high strength and a high toughness. A heated heat insulator also may be placed in the stationary die to provide a temperature-retaining effect to the green compact before and during pressing.