Process Windows for Sheet Metal Parts based on Metamodels

10th International Conference and Workshop on Numerical Simulation of 3D Sheet Metal Forming Processes

Harsch, D.^1 ; Heingärtner, J.^1 ; Hortig, D.^2 ; Hora, P.^3

Inspire AG - Ivp (Institute of Virtual Manufacturing), Technoparkstrasse 1, Zürich

8005, Switzerland^1

Daimler AG, Käsbrünnlestr., Sindefingen

71059, Germany^2

ETH Zurich, Institute of Virtual Manufacturing, Tannenstrasse 3, Zürich

8092, Switzerland^3

关键词: Finite element simulations;    Force distributions;    Metamodeling;    Process optimisation;    Process window;    Robust production;    Sheet metal parts;    Virtual knowledge;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/734/3/032014/pdf
DOI  :  10.1088/1742-6596/734/3/032014

来源: IOP

【 摘 要 】

Achieving robust production of deep drawn sheet metal parts is challenging. The fluctuations of process and material properties often lead to robustness problems. Numerical simulations are used to validate the feasibility and to detect critical regions of a part. To enhance the consistency with the real process conditions, the measured material data and the force distribution are taken into account. The simulation metamodel contains the virtual knowledge of a particular forming process, which is determined based on a series of finite element simulations with variable input parameters. Based on the metamodels, process windows can be evaluated for different parameter configurations. This helps improving the operating point search, to adjust process settings if the process becomes unstable and to visualize the influence of arbitrary parameters on the process window.