Influence of runner cross-section on air entrapment in pressure die casts volume

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F75081431%3A_____%2F21%3A00002099" target="_blank" >RIV/75081431:_____/21:00002099 - isvavai.cz</a>

Result on the web

<a href="https://www.mmscience.eu/journal/issues/june-2021/articles/influence-of-runner-cross-section-on-air-entrapment-in-pressure-die-casts-volume" target="_blank" >https://www.mmscience.eu/journal/issues/june-2021/articles/influence-of-runner-cross-section-on-air-entrapment-in-pressure-die-casts-volume</a>

DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Influence of runner cross-section on air entrapment in pressure die casts volume

Original language description

Technology of metal die casting is characterized by production of casts complicated as to shape yet with positive mechanical properties and with high repeatability of production. However, casts are porous to a certain extent which eventually reduces their mechanical properties. One of the significant methods of porosity reduction of casts rests in correct design of a gating system. The submitted paper studies the influence of cross-section area of a runner on air entrapped in the cast volume. Seven alternatives of runners with the identical structural organization and variable cross-section area were compared. In case of a gating system design there was an assumption made that the runner with the largest cross section would deliver the lowest possible velocity to the melt before reaching the runner which would result in the lowest possible values of air entrapment. The air entrapment in the cast volume is evaluated behind the cores which were evaluated as critical points with regards to further processing. The results reached during examination of the melt flowing through runners proved the aforementioned assumption, yet the values of air entrapment in die casts volume did not show remarkable differences. In its final part, the paper clarifies the reached results and recommendations which should be taken into consideration when designing the gating system structure.

Czech name

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Czech description

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Type

J_imp - 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

Project

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Continuities

V - Vyzkumna aktivita podporovana z jinych verejnych zdroju

Publication year

2021

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

MM Science Journal

ISSN

1803-1269

e-ISSN

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Volume of the periodical

Neuveden

Issue of the periodical within the volume

JUN 2021

Country of publishing house

CZ - CZECH REPUBLIC

Number of pages

5

Pages from-to

4491-4495

UT code for WoS article

000658344000024

EID of the result in the Scopus database

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