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:
Apr. 30, 1996
Filed:
Dec. 27, 1994
Yuichi Nagao, Sayama, JP;
Honda Giken Kogyo Kabushiki Kaisha, Tokyo, JP;
Abstract
A forming die is composed of a die member and a reinforcing member for applying compressive forces radially inwardly to the die member. To manufacture the forming die, tensile stresses applied to elements divided from the die member are simulated, and a fracture region of the die member is specified based on the simulated tensile stresses. An inner circumferential configuration of the reinforcing ring, or an outer circumferential configuration of the die member is determined for cooperation with the die member or the reinforcing ring in producing compressive stresses in the die member to counteract tensile stresses in the fracture region. The reinforcing ring with the inner circumferential configuration or the die member with the outer circumferential configuration is formed, and either the reinforcing ring with the inner circumferential configuration is over the die member, or the reinforcing ring is fitted over the die member with the outer circumferential configuration.