Patent ID: 7147731
Filing Date: 2006-12-12
Classification: B21D,B62D,C21D,Y02P

Abstract:
1. A method for producing a flanged article having a flange stretching out of periphery, comprising steps of: forming the flanged article by press-forming a prescribed source material, deforming elastically only a first portion of the flange of the flanged article by application of an external force in a direction, hardening a second portion of the flanged article other than the flange with the first portion being kept deformed elastically, and releasing the external force after the hardening step operation to produce the flanged article, wherein the external force is applied to the first portion by bringing a contact member downward into contact with an upper face of the first portion, or upward with a lower face of the first portion, and inserting a spacer between said upper face or said lower face that is in contact with the contact member and a contact member corresponding to the external force in the direction to apply the external force to the first portion.