A method including providing a trim profile, the trim profile including a bend extending in the longitudinal direction of the trim profile, wherein the bend is arranged between side edges extending in the longitudinal direction, and wherein the bend shapes an interior surface and an exterior surface of the trim profile, fixating a first part of the trim profile including the bend in a first fixation arrangement, and arranging and fixating a second part of the trim profile in a second fixation arrangement. A deep drawing operation providing a relative displacement between a stamping tool and at least one of the fixation arrangements in a direction transverse to the longitudinal direction so that the stamping tool moves into a working space, wherein the deep drawing operation forces a wall material of the trim profile into the working space to provide an end wall part on the trim profile.

A method including providing a trim profile, the trim profile including a bend extending in the longitudinal direction of the trim profile, wherein the bend is arranged between side edges extending in the longitudinal direction, and wherein the bend shapes an interior surface and an exterior surface of the trim profile, fixating a first part of the trim profile including the bend in a first fixation arrangement, and arranging and fixating a second part of the trim profile in a second fixation arrangement. A deep drawing operation providing a relative displacement between a stamping tool and at least one of the fixation arrangements in a direction transverse to the longitudinal direction so that the stamping tool moves into a working space, wherein the deep drawing operation forces a wall material of the trim profile into the working space to provide an end wall part on the trim profile.

A press forming method includes: press forming a press formed product including a top portion, a side wall portion continuous from the top portion through a punch shoulder portion, and a flange portion continuous from the side wall portion through a die shoulder portion, the press formed product including a curved portion that is concave and curved in a top view; and increasing a bending radius of the punch shoulder portion in the curved portion from a center of a curve toward an end side of the curve.

A press forming method includes: press forming a press formed product including a top portion, a side wall portion continuous from the top portion through a punch shoulder portion, and a flange portion continuous from the side wall portion through a die shoulder portion, the press formed product including a curved portion that is concave and curved in a top view; and increasing a bending radius of the punch shoulder portion in the curved portion from a center of a curve toward an end side of the curve.

A press forming tool is configured to form a press forming part including: a top portion; a side wall portion having a recessed portion in which a bottom edge is recessed toward the top portion; and a flange portion formed outward on a bottom edge of the side wall portion, the recessed portion including a first curved portion continuous with the bottom edge being a portion having a large wall depth, an inclined side portion continuous with the first curved portion, a second curved portion continuous with the inclined side portion, and a recessed side portion having a small wall depth, arranged in order from the bottom edge being a portion having a large wall depth, the flange portion being formed such that the flange portion formed in the first curved portion becomes a shrink flange while the flange portion formed in the second curved portion becomes a stretch flange.

A press forming tool is configured to form a press forming part including: a top portion; a side wall portion having a recessed portion in which a bottom edge is recessed toward the top portion; and a flange portion formed outward on a bottom edge of the side wall portion, the recessed portion including a first curved portion continuous with the bottom edge being a portion having a large wall depth, an inclined side portion continuous with the first curved portion, a second curved portion continuous with the inclined side portion, and a recessed side portion having a small wall depth, arranged in order from the bottom edge being a portion having a large wall depth, the flange portion being formed such that the flange portion formed in the first curved portion becomes a shrink flange while the flange portion formed in the second curved portion becomes a stretch flange.

A press forming method for forming a press forming part includes: a first forming step of forming a preformed part, the preformed part including a side wall portion, a flange portion formed in a bottom edge being a portion having a large wall depth and a torsional shape portion formed in an inclined side portion continuous from the flange portion to reach a second curved portion; and a second forming step of further processing the preformed part formed in the first forming step, including processes of forming the torsional shape portion into the flange portion and forming the flange portion in the second curved portion continuous from the inclined side portion and in a recessed side portion having a small wall depth so as to achieve formation of a target shape.

A press forming method for forming a press forming part includes: a first forming step of forming a preformed part, the preformed part including a side wall portion, a flange portion formed in a bottom edge being a portion having a large wall depth and a torsional shape portion formed in an inclined side portion continuous from the flange portion to reach a second curved portion; and a second forming step of further processing the preformed part formed in the first forming step, including processes of forming the torsional shape portion into the flange portion and forming the flange portion in the second curved portion continuous from the inclined side portion and in a recessed side portion having a small wall depth so as to achieve formation of a target shape.

A press-fit structure and a press-fit method are introduced. The press-fit structure includes a body, a pressurizing portion, a material storage space, a restricting portion and a limit stop portion. The pressurizing portion is for applying a pressure on an object to cause a material of the object to flow into or enter the material storage space. The object is restricted by the restricting portion, and a restriction direction of the press-fit structure is restricted by the limit stop portion. Thus, the press-fit structure and the press-fit method of the present disclosure are enabled to provide a required object with a stable assembly effect.

A press-fit structure and a press-fit method are introduced. The press-fit structure includes a body, a pressurizing portion, a material storage space, a restricting portion and a limit stop portion. The pressurizing portion is for applying a pressure on an object to cause a material of the object to flow into or enter the material storage space. The object is restricted by the restricting portion, and a restriction direction of the press-fit structure is restricted by the limit stop portion. Thus, the press-fit structure and the press-fit method of the present disclosure are enabled to provide a required object with a stable assembly effect.