Process-machine interactions in cold forging – calculation of press / tooling stiffness and its integration into FE process simulation

Kroiß T, Völkl R, Engel U, Geiger M (2008)


Publication Type: Conference contribution

Publication year: 2008

Publisher: Hanrimwon Publishing Co.

Pages Range: 1735-40

Conference Proceedings Title: Proc. of the 9th International Conference on Technology of Plasticity (ICTP)

Event location: Gyeongju

Abstract

In this paper a new approach for the calculation of the axial stiffness for the complete system consisting of stroke-controlled press and tooling system in combination with an axially symmetric cold forging process is presented. Two stroke-controlled presses, one with a C-frame, the other in a stiff 4-columns design, were examined both showing a nearly linear behavior. The analyzed example process is full forward extrusion. The stiffness is determined indirectly using the evolution of the workpiece length depending on the actual punch stroke that changes due to the forming load and the resulting deflection. For the stiffness calculation experiments and a FE simulation of the example process are applied. The calculated stiffness was integrated into FE process simulation using a spring element. The comparison between experimental and simulation results shows a very good agreement.

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APA:

Kroiß, T., Völkl, R., Engel, U., & Geiger, M. (2008). Process-machine interactions in cold forging – calculation of press / tooling stiffness and its integration into FE process simulation. In Yang, D.Y. (Eds.), Proc. of the 9th International Conference on Technology of Plasticity (ICTP) (pp. 1735-40). Gyeongju: Hanrimwon Publishing Co..

MLA:

Kroiß, T., et al. "Process-machine interactions in cold forging – calculation of press / tooling stiffness and its integration into FE process simulation." Proceedings of the Proc. of the 9th International Conference on Technology of Plasticity (ICTP), Gyeongju Ed. Yang, D.Y., Hanrimwon Publishing Co., 2008. 1735-40.

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