The invention relates to a bending press (3), in particular a press brake, comprising a machine frame (7) and pressing bars (13, 16), and tool holders (19, 20) and bending tools (4) arranged or formed on the pressing bars (13, 16) in the form of a bending punch (5) or a bending die (6), wherein a receiving portion (35) of the bending tools (4) is accommodated in a receiving groove (34) of the tool holder (19, 20). The tool holder (19, 20) and a driver device (41) assigned to the bending tool (4) are designed as a linear motor, as a result of which the bending tool (4) can be positioned in a direction (32) that is parallel to a bending edge (31).

An arrangement for working a tube end includes: an operating cylinder with a piston displaceable along an longitudinal axis; and a tube mounting, a tool holder being provided at an end of the piston facing the tube mounting. The operating cylinder is provided as a tandem cylinder. At least two cylinder stages are offset along the longitudinal axis. The piston includes connected piston segments, each piston segment being allocated to a cylinder stage.

The disclosure relates to a method for producing a shaped sheet metal part from a billet by UO forming. First, a preform is created by the U-forming. Then, final forming to give a final form is carried out by the O-forming. The preform has in cross section a maximum width that is smaller than the maximum width of the final form produced after the O-forming.

A device and method for manufacturing a battery cell. The device includes: a roller moving mechanism, configured to control a first roller to move in a direction of a central axis of a battery cell, where the battery cell includes a case and a cover plate, the case and the cover plate being hermetically connected and forming a rolled edge structure that is turned outwards; and the first roller, configured to squeeze, when the roller moving mechanism controls the first roller to move in the direction of the central axis of the battery cell, the rolled edge structure by a first processing surface, to cause the rolled edge structure to be inclined in a direction close to the central axis of the battery cell.

A device and method for manufacturing a battery cell. The device includes: a roller moving mechanism, configured to control a first roller to move in a direction of a central axis of a battery cell, where the battery cell includes a case and a cover plate, the case and the cover plate being hermetically connected and forming a rolled edge structure that is turned outwards; and the first roller, configured to squeeze, when the roller moving mechanism controls the first roller to move in the direction of the central axis of the battery cell, the rolled edge structure by a first processing surface, to cause the rolled edge structure to be inclined in a direction close to the central axis of the battery cell.

A press die having a shaping face includes a holding frame, die members, a reference member, and a pressing bolt. Each of the die members includes a first surface that configures the shaping face. The die members are aligned in the holding frame. The reference member is arranged on an inner side surface of the holding frame to position the die members. The pressing bolt is supported by the holding frame on a side opposite to the reference member. The pressing bolt presses the die members against the reference member.

A press die having a shaping face includes a holding frame, die members, a reference member, and a pressing bolt. Each of the die members includes a first surface that configures the shaping face. The die members are aligned in the holding frame. The reference member is arranged on an inner side surface of the holding frame to position the die members. The pressing bolt is supported by the holding frame on a side opposite to the reference member. The pressing bolt presses the die members against the reference member.

A method of molding a back cover of a display and a die for molding the back cover are provided. More particularly, a method of finishing a side of a display by using a back cover is provided. A die for molding a back cover of a display includes: an upper die in which a lower inner side thereof has a fan shape with a certain curvature, and an inner side of the fan shape has a flat shape; a first lower die which is disposed below the upper die and in which an upper inner side thereof has a shape corresponding to the fan shape formed in the upper die, and an inner side of the fan shape is dent downward by a certain length; and a second lower die in which an upper portion thereof has a flat shape, and an end upper portion thereof protrudes toward the first lower die by a certain length.

A method of molding a back cover of a display and a die for molding the back cover are provided. More particularly, a method of finishing a side of a display by using a back cover is provided. A die for molding a back cover of a display includes: an upper die in which a lower inner side thereof has a fan shape with a certain curvature, and an inner side of the fan shape has a flat shape; a first lower die which is disposed below the upper die and in which an upper inner side thereof has a shape corresponding to the fan shape formed in the upper die, and an inner side of the fan shape is dent downward by a certain length; and a second lower die in which an upper portion thereof has a flat shape, and an end upper portion thereof protrudes toward the first lower die by a certain length.

A method for manufacturing a press-formed product includes a blanking step of blanking from a sheet-shaped material into a shape in which an excess material portion is added to the contour outline of a developed shape of the press-formed product, a first pressing step of folding the excess material portion to form straight sides into an intermediate formed product with a bent flange portion, a second pressing step of performing press forming including bulging in which the bulging portion is provided on the intermediate formed product, and a trimming step of trimming the excess material portion. A blank material includes excess material portion to be folded to form straight sides circumscribed around or spaced apart from a contour outline of a developed shape of the press-formed product, and an intermediate formed product includes excess material portion including a bent flange portion folded to form straight sides.