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[CN 201680069086.0] Method for operating presses, especially crank presses for forging
[CN 201680069086.0] Method for operating presses, especially forging crank presses Title: Method for operating presses, especially forging crank presses Application Number: CN 201680069086.0 Applicant: Xu Le Press Co., Ltd. Application Date: 2016-11-24 Patent Type: Invention Application The present invention relates to a method for operating a press with at least 80% of the nominal pressure of the press, the press is in particular a crank press for deforming workpieces, in particular for forging workpieces, such as in particular a crank press for forging, wherein the press comprises a servo drive and a mass system arranged between the servo drive and the workpiece and moving during operation of the press, wherein the mass of the mass system is formed at least by a push rod and at least by a drive shaft, wherein the mass system is driven at least occasionally by the servo drive, wherein a maximum of 80% of the nominal pressure is provided by the servo drive for the deformation process, and wherein the mass of the mass system is accelerated by the servo drive before the deformation process such that at least 80% of the nominal pressure is available during the deformation process.
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