Method for manufacturing press formed article and die set design method

A method for manufacturing a press formed article for forming a metal sheet into a target component shape having a cross section including a top plate portion and a vertical wall portion connected to an end portion of the top plate portion in a width direction and extends in a direction different from the top plate portion, and having one or two or more bending portions which are bent along a longitudinal direction which is a direction intersecting the cross section, the method comprising:

• in a case where an angle between the top plate portion and the vertical wall portion of the cross section is defined as a vertical wall angle,
• a first step of press-forming the metal sheet into an intermediate component including the top plate portion and the vertical wall portion using a die set having a forming surface with a first vertical wall angle smaller than a vertical wall angle of the target component shape at a position of the bending portion;
• and
• a second step of press-forming the intermediate component with a die set having a forming surface with a second vertical wall angle equal to or greater than the vertical wall angle of the target component shape at the position of the bending portion,
• wherein, at the position of the bending portion, for a vertical wall angle of the intermediate component after release in the first step, the first vertical wall angle is set to be an angle smaller than the vertical wall angle of the target component shape.