Method and apparatus for producing pressed component

A method for producing a pressed component by performing press working on a blank disposed between a punch and a blank holder on one side and a pad, a die and a bending die on another side,

• the pressed component having a top plate extending in the longitudinal direction, two vertical walls connected to a respective side of the top plate, two concave ridges respectively, connected to the two vertical walls, and two flanges respectively connected to the two concave ridges, and also having a curved portion at which the top plate, the two vertical walls and the two concave ridges are curved as viewed in a plan view from a direction orthogonal to the top plate, wherein
• the method comprises:
• a first step of holding a portion of the blank to be formed into the top plate in a state of being clamped by the pad and the punch, and holding a portion of the blank to be formed into a portion disposed further outward of the curved portion than the portion of the blank to be formed into the top plate in a state of being clamped by the blank holder and the die;
• a second step of relatively moving, after the first step, the bending die in a direction toward a side where the punch is disposed so as to perform the press working on the blank by bend forming, thus forming one of the two vertical walls, one of the two concave ridges connected to the one of the two vertical walls, and one of the two flanges connected to the one of the two concave ridges, which are to be disposed on an inner side of the curved portion;
• and
• a third step of relatively moving, after the second step, the die and the blank holder in a direction toward a side where the punch is disposed with the blank held in a state of being clamped by the blank holder and the die so as to perform the press working on the blank by draw forming, thus forming another one of the two vertical walls, another one of the two concave ridges connected to the another one of the two vertical walls, and another one of the two flanges connected to the another one of the two concave ridges, which are disposed on an outer side of the curved portion, wherein
• in the second step, one or more material inflow promoting portion is formed in a portion of the blank to be formed into a region disposed on the inner side of the curved portion;
• and
• the material inflow promoting portion is formed so as to protrude toward a same side as the top plate or protrude toward an opposite side to the top plate.