Design optimisation of the feeding system of a novel counter-gravity casting process

Show simple item record Papanikolaou, Michail Pagone, Emanuele Georgarakis, Konstantinos Rogers, Keith Jolly, Mark Salonitis, Konstantinos 2018-11-13T15:28:28Z 2018-11-13T15:28:28Z 2018-10-11
dc.identifier.citation Michail Papanikolaou, Emanuele Pagone, Konstantinos Georgarakis, et al., Design optimisation of the feeding system of a novel counter-gravity casting process. Metals, 2018, Volume 8, Issue 10), Article number 817 en_UK
dc.identifier.issn 2075-4701
dc.description.abstract The appropriate design of feeders in a rigging system is critical for ensuring efficient compensation for solidification shrinkage, thus eliminating (shrinkage-related) porosity and contributing to the production of superior quality castings. In this study, a multi-objective optimisation framework combined with Computational Fluid Dynamics (CFD) simulations has been introduced to investigate the effect of the feeders’ geometry on shrinkage porosity aiming to optimise casting quality and yield for a novel counter-gravity casting process (CRIMSON). The weighted sum technique was employed to convert this multi-objective optimisation problem to a single objective one. Moreover, an evolutionary multi-objective optimisation algorithm (NSGA-II) has been applied to estimate the trade-off between the objective functions and support decision makers on selecting the optimum solution based on the desired properties of the final casting product and the process characteristics. This study is one of the first attempts to combine CFD simulations with multi-objective optimisation techniques in counter-gravity casting. The obtained results indicate the benefits of applying multi-objective optimisation techniques to casting processes en_UK
dc.language.iso en en_UK
dc.publisher MDPI en_UK
dc.rights Attribution 4.0 International *
dc.rights.uri *
dc.subject sand casting en_UK
dc.subject counter-gravity en_UK
dc.subject multi-objective optimisation en_UK
dc.subject feeding system en_UK
dc.title Design optimisation of the feeding system of a novel counter-gravity casting process en_UK
dc.type Article en_UK

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