An apparatus for forming a base profile on a metal container carried on a punch moving along an axis. The apparatus comprises a die for forming the base profile on the container and a resilient support for holding the die in a resting position substantially along said axis whilst allowing the die to be deflectable perpendicular to said axis and providing a restoring force to return the die to the resting position.

Warpage or torsion in a longitudinal direction is suppressed when an elongated curved component is manufactured by press forming. A method for manufacturing a pressed component includes a first step of press forming a metal sheet in a desired component shape using a first die, and a second step of press forming a formed product using a second die after the first step. In the second step, a cross section of a bent part and a vertical wall part are controlled to be opened depending on warpage at longitudinal end portions of the component by elastic recovery due to release from the first die, thereby suppressing the warpage.

A pressing which a ram repeats an up-and-down motion for press working machine that performs a continuous operation in by a press die held by a die holding portion of a bolster and a die holding portion of the ram includes: a die positioning portion that positions the press die in a first direction being a moving direction of the ram; a position adjustment mechanism having a servomotor as a drive source and optionally changing a position where the press die is positioned by the die positioning portion; and a drive control unit driving, when position change data is given during the continuous operation, the servomotor such that the position where the press die is positioned by the die positioning portion is changed to a position corresponding to the position change data when reaction force of the press working not applied to the die positioning portion during continuous operation.

A pressing which a ram repeats an up-and-down motion for press working machine that performs a continuous operation in by a press die held by a die holding portion of a bolster and a die holding portion of the ram includes: a die positioning portion that positions the press die in a first direction being a moving direction of the ram; a position adjustment mechanism having a servomotor as a drive source and optionally changing a position where the press die is positioned by the die positioning portion; and a drive control unit driving, when position change data is given during the continuous operation, the servomotor such that the position where the press die is positioned by the die positioning portion is changed to a position corresponding to the position change data when reaction force of the press working not applied to the die positioning portion during continuous operation.

A base reformer assembly, and/or a base reformer roller die unit, includes a generally torpid chuck, a roller die, and a roller die unit actuating assembly. The roller die is movably disposed within the chuck. The roller die unit actuating assembly is structured to actuate the roller die. The roller die unit actuating assembly is operatively coupled to the roller die. Further, all elements of the roller die unit actuating assembly have a robust cross-sectional area.

An information providing device provides information to a formed product formed by a forming device including a die for forming a metal material, in which the information is provided to the formed product after being formed by the forming device, and the information is information from which at least forming conditions of the formed product are acquirable. The information providing device includes an information acquisition unit that acquires the forming conditions.

An information providing device provides information to a formed product formed by a forming device including a die for forming a metal material, in which the information is provided to the formed product after being formed by the forming device, and the information is information from which at least forming conditions of the formed product are acquirable. The information providing device includes an information acquisition unit that acquires the forming conditions.

[object] To provide a seamless can body in which the sheet thickness of a raw sheet (blank) is reduced, pressure resistance of a can bottom is enhanced, buckling is restrained, and problems with blacking and cleaning are solved, and a manufacturing method of the seamless can body. [Solving Means] A seamless can body 1 having a tubular body section 10 and a can bottom section 20. The can bottom section 20 includes an outer circumferential bottom section 202a extending from a lower end of the tubular body section 10 such as to decrease in diameter toward the inside and an annular grounding section 202E positioned further inside than the outer circumferential bottom section 202a. In a case where t1 is the sheet thickness of the outer circumferential bottom section 202a and where t2 is the sheet thickness of the annular grounding section 202b, the relation of t2>t1 is satisfied.

[object] To provide a seamless can body in which the sheet thickness of a raw sheet (blank) is reduced, pressure resistance of a can bottom is enhanced, buckling is restrained, and problems with blacking and cleaning are solved, and a manufacturing method of the seamless can body. [Solving Means] A seamless can body 1 having a tubular body section 10 and a can bottom section 20. The can bottom section 20 includes an outer circumferential bottom section 202a extending from a lower end of the tubular body section 10 such as to decrease in diameter toward the inside and an annular grounding section 202E positioned further inside than the outer circumferential bottom section 202a. In a case where t1 is the sheet thickness of the outer circumferential bottom section 202a and where t2 is the sheet thickness of the annular grounding section 202b, the relation of t2>t1 is satisfied.

The present invention relates to a method for producing a dimensionally stable sheet metal component, wherein the method includes preforming a metal sheet into a sheet metal preform comprising at least one base region, a frame region, a transitional region between the base region and the frame region, optionally a flange region and a transitional region between the frame region and the flange region, wherein at least one of the regions comprises excess material at least in portions. The sheet metal preform is cut at least in portions to form a cut sheet metal preform with a sheet metal preform The sheet metal preform is one of swagged and calibrated which has been cut at least in portions to form a substantially finished formed sheet metal component.