Methode zur Auslegung von Sonderverfahren in der Blechumformung mit hoher Prozessdynamik am Beispiel der Kissen-Stößel-Pulsation

Abstract

Forming processes can be flexible adjusted on modern servo presses. So far, the ad-vantages lead to an increase in the productivity. For example, with servo presses once can make the idle stroke faster while the forming process is slower with soft touch of the forming tools onto the workpiece. Recent developments deal with the optimized movement of the ram and the cushion during the forming process to locally influence part properties or to extend forming limits. The tool design and interpretation of the processes can be supported by a systematic analysis of the influence of the parameter on the forming process. Within the present project advanced process models were developed, which consider the elastic characteristics of the machine during a sensitivity analysis of sheet metal forming processes. The advanced process models improve the prognosis of deep drawing process with variable motion paths. The developed sensitivity analysis based on current planning methods. The simulation tools were updated and automated to work with variable motion paths. Metamodels can be generated as a result of the sensitivity analysis, which approximate the system behavior of the process and the press machine for the selected configuration. Then optimal setting parameters for the process can be derived from the metamodel