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.

The present invention relates to a pouch-shaped case forming apparatus for forming a pouch-shaped case having a terrace step, wherein there are no dents or wrinkles at a pouch folding portion of the pouch-shaped case, a method of manufacturing a pouch-shaped case using the same, and a pouch-shaped case manufacturing using the forming apparatus.

The present invention relates to a pouch-shaped case forming apparatus for forming a pouch-shaped case having a terrace step, wherein there are no dents or wrinkles at a pouch folding portion of the pouch-shaped case, a method of manufacturing a pouch-shaped case using the same, and a pouch-shaped case manufacturing using the forming apparatus.

A mold is for press molding a metal plate and a resin material to produce a metal-resin composite. The mold includes an upper mold and a lower mold that sandwich the metal plate and the resin material. A cavity for arranging the resin material is provided by the upper mold and the lower mold. The upper mold has a recess into which the resin material leaking from the cavity is caused to flow.

A mold for producing a metal-resin composite by press-forming a metal member and integrally molding the metal member that is press-formed and a resin material includes an upper mold and a lower mold that sandwich the metal member and the resin material. The upper mold includes a first press surface for press-forming the metal member and a second press surface for integrally molding the metal member and the resin material. A distance between the first press surface and the lower mold is shorter than a distance between the second press surface and the lower mold.

A method for manufacturing a pressed component including an elongated top plate, a wall having one end connected to a short direction end portion of the top plate, that curves with a convex shape bowing toward an opposite side to the top plate as viewed from an upper side of the top plate, and that includes a sharp curve portion, and a flange that is connected to another end of the wall, and that extends in a plate thickness direction of the wall toward the opposite side to the top plate side. The manufacturing method includes pressing to form an intermediate formed component including a preliminary flange and pressing to deform the preliminary flange to form the preliminary flange into the flange.

A method for manufacturing a pressed component including an elongated top plate, a wall having one end connected to a short direction end portion of the top plate, that curves with a convex shape bowing toward an opposite side to the top plate as viewed from an upper side of the top plate, and that includes a sharp curve portion, and a flange that is connected to another end of the wall, and that extends in a plate thickness direction of the wall toward the opposite side to the top plate side. The manufacturing method includes pressing to form an intermediate formed component including a preliminary flange and pressing to deform the preliminary flange to form the preliminary flange into the flange.

Provided is a press-formed article manufacturing method including pressing a blank with the first pressing apparatus to form a first intermediate formed article having a pair of bent portions bent to one side in the plate thickness direction and having a spacing between the bent portions narrower than the width of the top plate and equal to or more than the width of the top portion of the convex portion, and moving the second die relative to the second punch side punch with respect to the die pad and the second punch and forming a second intermediate formed article in a state where a portion between the bent portions is sandwiched between the die pad and the convex portion, with one side of the first intermediate formed article in the plate thickness direction as the convex portion side of the second pressing apparatus.

The present invention provides a hot-stamping formed article made of steel, in which the hot-stamping formed article has at least one of a tensile strength of 1200 MPa or more and a martensitic steel structure and includes a first portion, a corner portion, and a second portion, which are sequentially continuous from one end portion to the other end portion in a longitudinal direction, each of the first portion, the corner portion, and the second portion includes a top sheet and two vertical walls connected to the top sheet when viewed in a cross section perpendicular to the longitudinal direction, the second portion includes a first outwardly-extending flange adjacent to the vertical wall, and the corner portion includes a vertical flange extending from the vertical wall of the first portion, a second outwardly-extending flange adjacent to the vertical wall located on an outer peripheral side of the corner portion out of the two vertical walls, and a transition portion in which the vertical flange and the second outwardly-extending flange are continuous.