HIGH-PRESSURE DIE CASTS GATING SYSTEM NUMERICAL DESIGN METHODOLOGY ASSESSMENT WITH REGARD TO HYDRODYNAMIC CONDITIONS IN THE MELT FLOW

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F75081431%3A_____%2F25%3A00002802" target="_blank" >RIV/75081431:_____/25:00002802 - isvavai.cz</a>
Result on the web
<a href="https://www-mmscience-eu.ezproxy.techlib.cz/journal/issues/march-2025/articles/high-pressure-die-casts-gating-system-numerical-design-methodology-assessment-with-regard-to-hydrodynamic-conditions-in-the-melt-flow" target="_blank" >https://www-mmscience-eu.ezproxy.techlib.cz/journal/issues/march-2025/articles/high-pressure-die-casts-gating-system-numerical-design-methodology-assessment-with-regard-to-hydrodynamic-conditions-in-the-melt-flow</a>
DOI - Digital Object Identifier
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Result language
angličtina
Original language name
HIGH-PRESSURE DIE CASTS GATING SYSTEM NUMERICAL DESIGN METHODOLOGY ASSESSMENT WITH REGARD TO HYDRODYNAMIC CONDITIONS IN THE MELT FLOW
Original language description
High-pressure die casts exhibit a certain amount of porosity, which can reduce their mechanical properties. One of the options for maintaining the porosity of casts at a low value is the correct gat-ing system design. Presented contribution is based on the conclusions of the “Methodology assess-ment of the gating system numerical design of high pressure die casting with regard to the material applicability” contribution. Individual numerical design methods gave different dimensions and cross-sections for the gating channels. Based on the assumption of a Reynolds number Re modifica-tion when altering the hydraulic cross-sections of the gating channels, it is possible to conclude that the nature of the melt flow in the channels is also shifting. The presented contribution aims to analyt-ically determine the hydrodynamic conditions in the melt with different designs of the gating sys-tems, determine the filling mode of the mold cavity and subsequently, using a simulation program, to determine the share of gas entrapment in the casts volume. At the end of the contribution, assump-tions are deduced about the mechanism of gas entrapment in the casts volume.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20301 - Mechanical engineering

Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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