| 摘要 |
PROBLEM TO BE SOLVED: To provide a mold for press forming which stably generates a reverse bending deformed part by overrun even when a die shoulder radius is large, reduces a phenomenon such as a wall camber as little as possible, and can raise a dimensional precision at the time of press forming a metal plate, and a method for press forming using this type of mold. SOLUTION: The mold has at least a punch and a die, and is for press forming the metal plate. The punch-die clearance CL2 corresponding to the part formed at least immediately after the early period of press forming is set broader than the punch-die clearance CL1 corresponding to the part formed at the early period of press forming (CL1<CL2). COPYRIGHT: (C)2004,JPO
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