A long formed article made of one steel sheet includes a top sheet portion extending in a longitudinal direction, a standing wall portion extending downward from each of both edges of the top sheet portion in a width direction, and a protrusion portion formed in a portion of the top sheet portion in the longitudinal direction by overlapping a portion extending toward an outside from each of both ends of the top sheet portion in the width direction and a portion extending toward the outside from an upper end of the standing wall portion, in a non-protrusion region, a recessed part extending in the longitudinal direction is formed in the top sheet portion, and a total value α of inner surface peripheral lengths of the top sheet portion and the standing wall portion in a cross section of the formed article perpendicular to the longitudinal direction in a protrusion region and a total value β of inner surface peripheral lengths of the top sheet portion, the standing wall portion, and the recessed part in the cross section of the formed article perpendicular to the longitudinal direction in the non-protrusion region satisfy 1.01≤β/α≤1.50.

A manufacturing device manufactures a component having a hat-shaped section as a pad and a punch sandwiching a center portion of a metal plate, and a die and a holder sandwiching both side portions of the metal plate are moved relative to each other in the upper-lower direction. The manufacturing device includes the die, the pad provided inside an opening of the die so that the pad is able to move relative to the die, the punch arranged to face the pad in the upper-lower direction, the holder arranged around the punch so as to face the die in the upper-lower direction and be able to move downwardly, and a locking block provided on the holder. The locking block is moved from a non-facing position to a facing position and inserted between the pad and the holder after mold closing and before mold opening.

Method and device for manufacturing a component from a plate made of deformable material, in particular for an edge of an element of an aircraft. The device includes a tool with two tool parts configured to be able to move closer to one another and are able to round a plate made of deformable material fixed to the two tool parts, a mold at the periphery of the tool and including a molding cavity of a shape corresponding to the shape of the component that is to be manufactured, and a displacement system configured to press the rounded plate firmly against the molding cavity of the mold, the mold being able to shape the rounded plate when it is pressed firmly against the molding cavity to give it its definitive shape, the device allowing the manufacture of single-piece components of varying sizes and notably large-sized components and/or deep components.

A hot-stamping formed article is formed of a single steel sheet, and includes: a top sheet portion; a pair of standing wall portions; and a protrusion portion which connects the top sheet portion to the standing wall portion and protrudes outward from the top sheet portion, in which the protrusion portion includes an inner wall portion which stands upright from the top sheet portion, and an outer wall portion which is folded outward from an end edge of the inner wall portion, and an angle between the top sheet portion and the protrusion portion is 80° to 90°.

A method of manufacturing a complex-shaped metal part, including the steps of applying a metallic sheath around a sheet metal workpiece and applying an electric current through the workpiece in the metallic sheath to heat the workpiece. The method also includes shaping the workpiece in the metallic sheath into a complex-shaped metal part while it is being heated. The shaping can be performed between two ceramic dies or using other techniques for forming complex shapes and curvatures into the workpiece. The method then may include cooling the complex-shaped metal part and removing the metallic sheath from the complex-shaped metal part. This method can allow reactive and refractory material to be safely heated without oxidation when heating/forming in air when the workpiece is sealed within a sacrificial stainless steel or nickel alloy envelope to protect the enclosed workpiece.

The present invention provides a hot-stamping formed article which is long and formed of a single steel sheet, the hot-stamping formed article including: two standing wall portions; a top sheet portion adjacent to the two standing wall portions; and a protrusion portion including an overlapping portion in which a portion of the steel sheet extending from at least one standing wall portion of the two standing wall portions and a portion of the steel sheet extending from the top sheet portion overlap, in which an angle between the top sheet portion and the protrusion portion in a case where a plane perpendicular to a longitudinal direction of the hot-stamping formed article is viewed in a cross section is larger than 90°.

A hot-stamping formed article is formed of a single steel sheet, and includes: a top sheet portion; a pair of standing wall portions; and a protrusion portion which connects the top sheet portion to the standing wall portion and protrudes outward from the top sheet portion, in which the protrusion portion includes an inner wall portion which stands upright from the top sheet portion, and an outer wall portion which is folded outward from an end edge of the inner wall portion, and an angle between the top sheet portion and the protrusion portion is 80 to 90.

A manufacturing device manufactures a component having a hat-shaped section as a pad and a punch sandwiching a center portion of a metal plate, and a die and a holder sandwiching both side portions of the metal plate are moved relative to each other in the upper-lower direction. The manufacturing device includes the die, the pad provided inside an opening of the die so that the pad is able to move relative to the die, the punch arranged to face the pad in the upper-lower direction, the holder arranged around the punch so as to face the die in the upper-lower direction and be able to move downwardly, and a locking block provided on the holder. The locking block is moved from a non-facing position to a facing position and inserted between the pad and the holder after mold closing and before mold opening.

A method for manufacturing a press-formed product includes: a first step of preparing a long material having a bending portion; and a second step of decreasing curvature of the bending portion while restricting both ends of the long material in a longitudinal direction.

A stabilizer having a tubular shape is provided so as to extend in a widthwise direction of a vehicle and coupled to a suspension arm at opposite end portions of the stabilizer. Each of the opposite end portions includes: a first large-diameter bar portion having an outside diameter greater than an outside diameter of an intermediate portion of the stabilizer; and a second large-diameter bar portion having an outside diameter greater than the outside diameter of the first large-diameter bar portion and having a wall thickness greater than a wall thickness of the intermediate portion.