Patent ID: 6907764

Claim:
A method for manufacturing a flanged article that comprises a central depressed body and a peripheral flange, comprising: press forming a substantially flat material to form an intermediate flanged article that comprises an intermediate central depressed body and an intermediate peripheral flange, and circumferentially squeezing the intermediate peripheral flange of the intermediate flanged article while applying a pressing force in a direction of thickness thereof, thereby forming the peripheral flange, wherein the intermediate peripheral flange is thickened as a result of plastic flow caused by plastic deformation, such that the peripheral flange is thicker than the intermediate peripheral flange and the central depressed body is coupled to the peripheral flange, wherein the intermediate flange of the intermediate flanged article is squeezed between an upper die and a piston movably received within a lower die opening of a squeeezing apparatus such that at least a portion of the intermediate peripheral flange extends outwardly from the lower die opening, and wherein the upper die and the piston are pushed into the lower die opening together with the intermediate flanged article clamped therebetween.