| About this Abstract |
| Meeting |
13th International Conference on the Technology of Plasticity (ICTP 2021)
|
| Symposium
|
13th International Conference on the Technology of Plasticity (ICTP 2021)
|
| Presentation Title |
Numerical Modelling of the Flow Forming Process: Computation Time Optimization and Accuracy Analysis |
| Author(s) |
Ahmed Mehdi Nidhal Roula, Katia Mocellin, Pierre-Olivier Bouchard |
| On-Site Speaker (Planned) |
Katia Mocellin |
| Abstract Scope |
Flow forming is an incremental forming process during which a roller tool deforms a rotating sheet metal by applying a force which is local and evolving during the entire process. The finite element software FORGEŽ is used in order to model this process. The local tool-workpiece contact conditions and the high rotation speed make the modelling of this process difficult with high computation time. It is therefore necessary to develop optimization strategies aiming to reduce the computation time whilst maintaining a sufficient level of results accuracy.
A first configuration optimization method consists in reducing the geometry of the initial blank and using symmetry planes. The final reduced geometry obtainable is 36° wide. This method is then associated with a second one which consists in reducing the number of calculation time steps during the entire process. The calculation time steps removed are those occurring when the roller tool is not in contact with the deformable sheet metal anymore. The two combined methods give the ability to drastically reduce the computation time compared to the reference case. In addition, the global and local results of the reference case are mostly conserved when applying the configuration optimization methods. |
| Proceedings Inclusion? |
Definite: At-meeting proceedings |