Project Status: finished
Short product development times together with low costs require an efficient process design with an optimized utilization of the specific process properties. In this project a simulation supported system is developed, which determines the process parameters for the hydroforming of sheet metal pairs. The system is based on a finite element simulation of the process. A closed loop control interrupts the simulation after every calculated increment and analyzes the actual process state, considering the process history. This analysis is based on process knowledge formalized with fuzzy-logic methods. Then, if necessary, the process parameters for the resumption of the process simulation are adapted. The storage of the intermediate states in a process tree also permits the resumption of the simulation with adapted process parameters at a former process state. Finally, correlations between measurable process parameters and the calculated process parameters together with the stored intermediate states enable the definition of a sensor system to control the determined process sequence
Hagenah, H.; Kohlbauer, R.:
Application of fuzzy logic for process design in sheet metal hydroforming..
In: Grabec, I.; Govekar, E. (Edt.): Proceedings of the 9th CIRP International Workshop on Modeling of Machining Operations, (2006), Ljubljana, Slowenien: University of Ljubljana, Faculty of Mechanical Engineering, pp. 335-342