| 摘要 |
[Problem] To provide a method for manufacturing a sheet-shaped formed component having sections of increased thickness in a zone away from the edge, in sections that are generally of flat sheet shape. [Solution] This manufacturing method is a method for manufacturing a sheet-shaped formed component having sections of increased thickness, wherein the method includes: a first step, which is a draw-forming step, for draw-forming a cylindrical draw-formed component provided with a flat sheet portion and with a cylindrical drawn portion distended in such a way as to protrude from the flat sheet portion and provided with an apical portion of circular shape, the step involving the use of a first die and a second die to press a zone away from the edge of a sheet-shaped member of flat sheet shape, and the formation of a recessed curving portion in the sheet-shaped member; and a second step in which, while a zone that includes the recessed curving portion of the sheet-shaped member remains sandwiched by the first and second dies, the outside peripheral portion of the sheet-shaped member is sandwiched by a third die and fourth die, and the first and second dies and the third and fourth dies are moved relative to one another, whereby the zone that includes the recessed curving portion is caused to protrude with respect to the outside peripheral portion, to obtain the cylindrical draw-formed component. |
