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Combining Structural Optimization and Process Assurance in Implicit Modelling for Casting Parts

Title data

Rosnitschek, Tobias ; Erber, Maximilian ; Hartmann, Christoph ; Volk, Wolfram ; Rieg, Frank ; Tremmel, Stephan:
Combining Structural Optimization and Process Assurance in Implicit Modelling for Casting Parts.
In: Materials. Vol. 14 (2 July 2021) Issue 13 . - Art.Nr. 3715.
ISSN 1996-1944
DOI: https://doi.org/10.3390/ma14133715

Abstract in another language

The structural optimization of manufacturable casting parts is still a challenging and time-consuming task. Today, topology optimization is followed by a manual reconstruction of the design proposal and a process assurance simulation to endorse the design proposal. Consequently, this process is iteratively repeated until it reaches a satisfying compromise. This article shows a method to combine structural optimization and process assurance results to generate automatically structure- and process-optimized die casting parts using implicit geometry modeling. Therefore, evaluation criteria are developed to evaluate the current design proposal and qualitatively measure the improvement of manufacturability between two iterations. For testing the proposed method, we use a cantilever beam as an example of proof. The combined iterative method is compared to manual designed parts and a direct optimization approach and evaluated for mechanical performance and manufacturability. The combination of topology optimization (TO) and process assurance (PA) results is automated and shows a significant enhancement to the manual reconstruction of the design proposals. Further, the improvement of manufacturability is better or equivalent to previous work in the field while using less computational effort, which emphasizes the need for suitable metamodels to significantly reduce the effort for process assurance and enable much shorter iteration times.

Further data

Item Type: Article in a journal
Refereed: Yes
Keywords: die casting; implicit modeling; process assurance; structural optimization; virtual product development
Institutions of the University: Faculties > Faculty of Engineering Science > Former Professors > Chair Engineering Design and CAD - Univ.-Prof. Dr.-Ing. Frank Rieg
Faculties > Faculty of Engineering Science > Chair Engineering Design and CAD > Chair Engineering Design and CAD - Univ.-Prof. Dr.-Ing Stephan Tremmel
Research Institutions > Research Units > ZET - Zentrum für Energietechnik
Faculties
Faculties > Faculty of Engineering Science
Faculties > Faculty of Engineering Science > Former Professors
Faculties > Faculty of Engineering Science > Chair Engineering Design and CAD
Research Institutions
Research Institutions > Research Units
Result of work at the UBT: Yes
DDC Subjects: 600 Technology, medicine, applied sciences > 620 Engineering
Date Deposited: 05 Jul 2021 11:31
Last Modified: 05 Jul 2021 11:31
URI: https://eref.uni-bayreuth.de/id/eprint/66426