Numerical and Physical Simulation of Flux Entrainment Mechanism in Mechanical Stirring Processes

Yamamoto, Takuya; Komarov, Sergey V.

doi:10.1007/s11663-022-02691-3

Cited by 2 publications

(1 citation statement)

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“…Advancements in simulation techniques over recent years have enabled the in-depth exploration of numerous complex aspects of metal casting. These include the examination of multiphase liquid metal flow [2,3], the mechanism of flux drag in mechanical mixing processes [4], the bidirectional coupling effects of thermal conductivity [5], the process of slag fuming [6], and the solidification process in continuous casting [7].…”

Section: Introductionmentioning

confidence: 99%

Solidification analysis for variable thickness aluminum castings: simulation and chill design insights

Yilmaz,

Colak,

Uslu

2023

Eng. Res. Express

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Manufacturing high-quality casting parts with complex geometries requires high engineering skill and precision. One essential quality concern is isolated hot spots within the castings, often in thick sections. Each hot spot must be consistently fed or mitigated through directional solidification techniques. The impact of various mold sands and the geometry of chill parts on solidification direction was investigated using specialized casting and general-purpose simulation programs. A parametric optimization method was employed to analyze directional solidification to adjust the geometry of the chill parts. The results indicate that employing diverse mold sands to enhance cooling in the thick sections was a viable strategy for achieving directional solidification in parts where the feeding pathway is obstructed due to changes in cross-section. Furthermore, the study revealed that intricate details in the chill part's geometry are not critical; however, a minimum volume (or weight) was necessary for adequate directional solidification. Lastly, an easily applicable mathematical model has been developed to determine the required volume of chill parts to ensure successful directional solidification.

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