Lehrstuhl für Fertigungstechnologie, Universität Erlangen-Nürnberg

Sensitivity analysis of the three-roll-push-bending process using the finite element method

Datum: 15.12.2014



  • Prof. Dr.-Ing. habil. M. Merklein
  • Prof. Dr.-Ing. J. Franke

The three-roll-push-bending process is a modern, flexible bending process. In contrast to conventional tool-based bending processes, 3-dimensional components with almost any curvature and torsion distribution can be produced. However, a widespread use and a substitution of other bending processes are currently restricted by a number of unsolved issues. In this context, the ability to limit process deviations is a central issue.

In the scope of this work, the deviations of geometrical and mechanical input factors have been quantified. Their impact on the resulting bending geometry has been determined by numerical simulation. Thereby, the investigation of three-dimensional bending operations was emphasized. Moreover, the mechanisms of action involved in the forming process and their variations caused by noise factors have been shown. It could be demonstrated how a variation of different input parameters influences the extent of the mechanisms of action, and by this the resulting bending geometry.