Publication detail

Gating Systems for Sizeable Castings from Al Alloys Cast into Ceramic Moulds

STACHOVEC, I. HORENSKÝ, J. HORÁČEK, M. ZEMČÍK, L. KOLDA, V.

Czech title

Vtokové systémy pro rozměrné odlitky ze slitin Al odlévaných do keramických forem

English title

Gating Systems for Sizeable Castings from Al Alloys Cast into Ceramic Moulds

Type

journal article - other

Language

en

Original abstract

In contrast to casting to conventional non-reusable sand moulds, for which calculating technique for an optimum design of the gating system is comparatively well-developed, a trial-and-error method is applied mostly at casting to ceramic shell moulds made by the investment casting technology. A technologist selects from gating systems of several types (that are standardized by the foundry mostly) on the basis of experience. However, this approach is not sustainable with ever growing demands on quality of castings and also the economy of their fabrication as well as with new types of complex sizeable castings introduced to the production gradually (by new customers from the aircraft industry above all) any more. The simulation software may be used as a possible tool for making the process of optimizing gating systems more effective.

Czech abstract

Na rozdíl od lití do klasických netrvalých „pískových“ forem, kde je metodika výpočtu pro optimální návrh vtokové soustavy poměrně rozpracována, při odlévání do keramických skořepinových forem zhotovených technologií vytavitelného modelu se většinou uplatňuje metoda pokus/omyl. Technolog na základě zkušeností používá několik typů (většinou slévárnou standardizovaných) vtokových soustav. Nicméně se stále rostoucími požadavky na kvalitu odlitků a také ekonomiku jejich zhotovení, stejně jako s nově do výroby postupně zaváděnými typy komplikovaných rozměrných odlitků (noví zákazníci především z leteckého průmyslu) není tento přístup nadále udržitelný. Jako možný nástroj pro zefektivnění procesu optimalizace vtokových soustav může sloužit simulační software.

English abstract

In contrast to casting to conventional non-reusable sand moulds, for which calculating technique for an optimum design of the gating system is comparatively well-developed, a trial-and-error method is applied mostly at casting to ceramic shell moulds made by the investment casting technology. A technologist selects from gating systems of several types (that are standardized by the foundry mostly) on the basis of experience. However, this approach is not sustainable with ever growing demands on quality of castings and also the economy of their fabrication as well as with new types of complex sizeable castings introduced to the production gradually (by new customers from the aircraft industry above all) any more. The simulation software may be used as a possible tool for making the process of optimizing gating systems more effective.

Keywords in Czech

Aplikace informačních technologií pro slévárenský průmysl, Tuhnutí, Vtokové systémy, Keramické formy, Simulace

Keywords in English

Application of information technologies in the foundry industry, solidification, gating systems, ceramic moulds, simulation.

RIV year

2012

Released

01.02.2012

Publisher

Silesian University of technology

Location

Polsko

ISSN

1897-3310

Volume

12

Number

2

Pages from–to

65–68

Pages count

272

BIBTEX


@article{BUT93444,
  author="Ivo {Stachovec} and Jiří {Horenský} and Milan {Horáček} and Ladislav {Zemčík} and Vlastimil {Kolda},
  title="Gating Systems for Sizeable Castings from Al Alloys Cast into Ceramic Moulds",
  year="2012",
  volume="12",
  number="2",
  month="February",
  pages="65--68",
  publisher="Silesian University of technology",
  address="Polsko",
  issn="1897-3310"
}