| 摘要 |
A press forming method for an aluminum alloy sheet capable of forming a large panel having a shape hard to be formed which is an automobile body outer panel such as a luggage outer panel, and a pressing device. A method of press-forming an aluminum alloy sheet (30) to a molded panel having non-contact outer peripheral portions (5, 6) that do not contact a punch forming the middle portion of the panel at portions excluding the lower dead center and the vicinity thereof, wherein a first punch (11) forming the middle portion (2) of the panel and second punch (15) capable of displacing separately from this first punch are provided, the position of the second punch (15) relative to the first punch (11) is displaced toward a die (22) side, and these punches are linked with each other for moving so that the second punch (15) is allowed to contact non-contact outer peripheral portions (35, 36).
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