| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for press forming capable of restraining both flange end crack and corner crack on a molded product when a panel molded product is press-formed by the partial stretch-flanging deformation of a panel material with a metal mold having a draw bead. SOLUTION: The panel material is subjected to the partial stretch-flanging deformation with the metal mold having the draw bead 9 to manufacture the panel molded product 1 by press forming. The passage resistance of the panel material and the quantity of the thickness reduction of the passing panel material are controlled, so that the panel molded product is formed while preventing a crack (flange end crack) X at a stretch-flanging deformed part.
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