To reduce warping of vertical wall portions without causing buckling occurring in a component shape not having a flange portion. A punch and a pad sandwiching a top sheet portion therebetween in the sheet thickness direction, bending blades for bend-forming the vertical wall portions, and stoppers facing the bending blades in the press direction and constraining end portions of a material to be machined are provided. The punch is supported by a first cushion component elastically expandable and contractible in the press direction. The bending blades each have an upper die component and a lower die component disposed facing each other in the press direction with an interval (D) equal to or larger than a set compression amount and a second cushion component interposed between the upper die component and the lower die component, maintaining the interval (D), and contractible in the press direction at a predetermined pressure or more. The cushion pressure of the second cushion component is lower than the cushion pressure of the first cushion component and has such cushion pressure that the second cushion component does not contract during the bend-forming of the vertical wall portions.

The invention provides a formed material manufacturing method by which unnecessary thickening of a flange can be avoided. The formed material manufacturing method allows a formed material to be manufactured by forming processes that include at least one drawing-out process, at least one drawing process performed after the drawing-out process, and at least one coining process performed after the drawing process. The width of the rear end side of a punch used in the drawing-out process is set to be wider than the width of the tip end side thereof. An ironing process is performed on a region corresponding to the flange of the base metal sheet by pushing the base metal sheet together with the punch into a pushing hole.

The invention provides a formed material manufacturing method by which unnecessary thickening of a flange can be avoided. The formed material manufacturing method allows a formed material to be manufactured by forming processes that include at least one drawing-out process, at least one drawing process performed after the drawing-out process, and at least one coining process performed after the drawing process. The width of the rear end side of a punch used in the drawing-out process is set to be wider than the width of the tip end side thereof. An ironing process is performed on a region corresponding to the flange of the base metal sheet by pushing the base metal sheet together with the punch into a pushing hole.

The invention relates to a method for producing a component having a bottom region, optionally a bottom-body transition region, optionally a body region, optionally a body-flange transition region and optionally a flange region, wherein a semifinished product made of a plastically deformable material is provided, wherein the semifinished product has a longitudinal extent and a transverse extent having a circumferential edge contour having a separating surface, wherein the semifinished product is processed in one or more stages in one or more tools to produce the component. Moreover, the invention relates to a tool for producing a component.

According to the present disclosure, a manufacturing method for a saddle-shaped press-molded article includes curling a blank at a top plate configuration location of the blank that will form a top plate portion, applying the curl with a first force acting from an inner face side toward an outer face side of the blank at the top plate configuration location, applying the curl with a net force configured by second forces acting in mutually facing directions and a third force acting in the opposing direction to the first force at the outer face side of respective vertical wall configuration locations of the blank that will be molded into vertical wall portions, and in a state in which the top plate configuration location is curled, restraining end portion inverted ridge configuration location that will be molded into end portion inverted ridge portion, the top plate configuration location, the vertical wall configuration locations, and end portion flange configuration location that will be molded into end portion flange.

According to the present disclosure, a manufacturing method for a saddle-shaped press-molded article includes curling a blank at a top plate configuration location of the blank that will form a top plate portion, applying the curl with a first force acting from an inner face side toward an outer face side of the blank at the top plate configuration location, applying the curl with a net force configured by second forces acting in mutually facing directions and a third force acting in the opposing direction to the first force at the outer face side of respective vertical wall configuration locations of the blank that will be molded into vertical wall portions, and in a state in which the top plate configuration location is curled, restraining end portion inverted ridge configuration location that will be molded into end portion inverted ridge portion, the top plate configuration location, the vertical wall configuration locations, and end portion flange configuration location that will be molded into end portion flange.

Device to produce a stamped part includes a punch having a bearing surface, an anvil, a die and a magnetic field generator, provided in the punch, level with the bearing surface. The device is configured, in an initial position, so that: the bearing surface of the punch receives a portion of a first face of the blank, the anvil and the magnetic field generator are placed on either side of the same portion of the blank. The magnetic field generator being opposite a first face and the anvil opposite a second face of the blank, at a distance from the second face. The die is placed opposite the second face, level with another portion of the blank. The magnetic field generator applies pressure on the blank in a direction Z′Z of the anvil. The device includes two actuators to move the punch and the anvil, respectively, in the direction Z′Z.

Device to produce a stamped part includes a punch having a bearing surface, an anvil, a die and a magnetic field generator, provided in the punch, level with the bearing surface. The device is configured, in an initial position, so that: the bearing surface of the punch receives a portion of a first face of the blank, the anvil and the magnetic field generator are placed on either side of the same portion of the blank. The magnetic field generator being opposite a first face and the anvil opposite a second face of the blank, at a distance from the second face. The die is placed opposite the second face, level with another portion of the blank. The magnetic field generator applies pressure on the blank in a direction Z′Z of the anvil. The device includes two actuators to move the punch and the anvil, respectively, in the direction Z′Z.

A method of press forming that forms a press-formed product into a target shape, the method including: forming a top portion; forming a side wall portion and a flange portion such that a side wall height of the side wall portion of the press-formed product becomes larger than a side wall height of the target shape, where the side wall height of the side wall portion is formed to be larger than the side wall height of the target shape by adding a value half or less of a radius of curvature of the ridge, in a longitudinal direction vertical cross section, of the target shape; and reforming a ridge between the side wall portion and the flange portion such that the side wall height of the side wall portion becomes the side wall height of the target shape.

A method of press forming that forms a press-formed product into a target shape, the method including: forming a top portion; forming a side wall portion and a flange portion such that a side wall height of the side wall portion of the press-formed product becomes larger than a side wall height of the target shape, where the side wall height of the side wall portion is formed to be larger than the side wall height of the target shape by adding a value half or less of a radius of curvature of the ridge, in a longitudinal direction vertical cross section, of the target shape; and reforming a ridge between the side wall portion and the flange portion such that the side wall height of the side wall portion becomes the side wall height of the target shape.