| 摘要 |
PURPOSE:To prevent the lowering of the durability which will be caused by abutting of resin mold against the entire surface of blank when a press molding is carried out, by forming a recessed escaping section by the configuration transfer of the adulterant when the resin mold is formed. CONSTITUTION:An adulterant 7 of a sheet wax or the like is previously stuck to the projected upper surface section of a top or a circumferential surface section extending to a shoulder of the upper side of a punch 2 to form a recessed escaping section 5a by the configuration transfer of the adulterant 7 when a resin mold 5 is molded. When a die 1 is lowered, a blank (W) is pinched between the undersurface of a die main body 1a and a blank holder 3, then when the die 1 is further lowered, the blank (W) is drawn into a shape along the shape of the punch, then a resin mold 5 in a recess 4 of the die main body 1a is abutted upon the blank (W) at a part where the punch shape is transferred excluding the escaping section 5a, a molding section (B) of the blank (W) in conformity with the die is lowered by the resin mold 5, and a molding section (A) of the blank (W) in conformity with the die is pushed upward by a shaped section of the punch 2 to be press molded into a prescribed shape. |
