Direct Drive of 25 MN Mechanical Forging Press

AbstractIn the branch of forging presses there are new ones with direct drive. Our aim was to find out its possibility and to validate its properties and functionality. Mechanical forging single point press with a nominal force of 25 MN is selected for the example of direct-drive – this is a more powerful than was ever produced. The proposed direct drive is solved by pair of torque motors. These are connected with eccentric shaft via a gear drive, because of need to reduce speed. The paper gives the engineering process, including determination of the time of the stroke. We tried to discus a questions about efficiency in this paper