Abstract: A forging press includes a slide configured to have a die attached thereto; a drive shaft configured to cause the slide to rise and lower by rotating; a flywheel connected to the drive shaft via a clutch; a servomotor and an electric generator each connected to the drive shaft; an electricity storage part configured to store the electricity generated by the electric generator and to feed the servomotor with electric power; and a control part configured to control the operations of the clutch, the servomotor, and the electric generator. The control part performs such control as to cause the electric generator to generate the electricity with the rotation of the drive shaft and to store the generated electricity in the electricity storage part during the rotation of the drive shaft with the driving of the flywheel and/or during the rotation of the drive shaft with an inertial force.

Abstract: A method for operating a mechanical press including an electric drive motor, a drive control for controlling the motor, a ram, a flywheel, a clutch and a member for translating rotational motion of the flywheel in a first rotation direction into a linear motion of the ram arranged to be lowered and raised along a linear path for operating the press to carry out a press production cycle. The press cycle includes a pressing part and one or more non-pressing parts. The press includes a second drive motor or actuator arranged connected to the ram and by providing a control output to the drive control, the speed of the second drive motor is made variable during at least one part of the press production cycle. The press may be reversed between production cycles. A press and system including such a press.

Abstract: In a press installation including a number of presses with servo-drives for operating the presses and auxiliary equipment such as workpiece handling devices wherein an energy management system is provided including a DC voltage intermediate circuit connected to a power supply grid via an AC/DC converter and to the servo-drives via servo-converters, a fly-wheel storage device is connected to the intermediate circuit for supplying energy thereto and recapturing energy therefrom under the control of a control arrangement which controls the flow of power between the intermediate circuit, the servo-drives, the fly-wheel storage device and the power supply grid.

Abstract: A method for operating a mechanical press including an electric drive motor, a drive control for controlling the motor, a ram, a flywheel, a clutch and a member for translating rotational motion of the flywheel in a first rotation direction into a linear motion of the ram arranged to be lowered and raised along a linear path for operating the press to carry out a press production cycle. The press cycle includes a pressing part and one or more non-pressing parts. The press includes a second drive motor or actuator arranged connected to the ram and by providing a control output to the drive control means, the speed of the second drive motor is made variable during at least one part of the press production cycle. The press may be reversed between production cycles. A press and system including such a press.

Abstract: A sheet metal trimming, flanging and forming apparatus using EMP includes a panel support having a support surface that generally conforms to a geometry of at least a portion of a metal panel. A securement device is disposed in proximity to the support surface and is moveable between a resting position and a working position relative to the support surface. An EMP coil is mounted around the securement device. The securement device secures the metal panel on the support surface, and in the working position the EMP coil is disposed in close proximity to the metal panel at a distance that promotes bending of the metal panel when an electromagnetic pulse is generated by the EMP coil.

Abstract: A die cushion drive system provided with a servo motor serving as a source of drive power for a die cushion of a press machine and a power circuit with a regeneration function which regenerates energy from the servo motor and returns it to an AC power supply, whereby it is possible to power the die cushion drive system by a servo motor and return the regenerated energy of this servo motor to the power source so as to save on energy.

Abstract: A process for mechanically joining plies of thin metallic components lying on one another, and apparatus for its implementation, involves an impulse-wave conductor (9, 25, 31-35) having first and second substantially straight impulse-wave-conductor portions (19, 20, 32, 33) which are arranged at an angle to one another along which impulse waves are transmitted to a stamp (7) to be driven into a component to be joined by impulse force. The impulse waves are redirected between the first and second substantially straight impulse-wave-conductor portions by a structure of an intermediate angled portion (21, 31) located between, the first and second substantially straight impulse-wave-conductor portions.