Naslov
Efficiency of numerical simulation in optimization of casting production

Autori
Zovko Brodarac, Zdenka ; Mahmutović, Almir ; Zeljko, Snježana ; Zeljko, Luka

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Conference Proceedings 62nd IFC Portoroz 2022 / Križman, A. ; Bührig-Polaczek, A. ; Medved, J. ; Mrvar, P. ; Murrell, P. ; Petrič, M. ; Rudolf, R. ; Schumacher, P. ; Sobczak, J. ; Talijan, N. ; Zovko Brodarac, Z. - Ljubljana : Slovenian Foundrymen Society, 2022

ISBN
978-961-94793-5-3

Skup
62nd IFC PORTOROZ 2023

Mjesto i datum
Portorož, Slovenija, 14.09.2022. - 16.09.2022

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
grey cast iron, numerical simulation, microstructure, mechanical properties, optimization

Sažetak
Grey cast iron is frequently used in industry, due to good thermal conductivity, low price and good mechanical properties. Chemical properties and solidification conditions have significant influence on microstructure and mechanical properties development. Most common use of grey cast iron is in automotive industry and heating elements. The application in the casting of thinwalled castings requires careful elaboration of the technological casting process parameters due to the curving tendency and the burns appearance. Advantage of numerical simulations is in effective and fast calculation of pouring and solidification of castings. Economical advantage lays in fast change of more different product variations in short time. Experimental part of this paper has several versions of numerical simulation of casting process. First one is the original geometry, which has been used in regular casting process of thin-walled castings framework for fireplace doors. Other versions with optimizing geometry of the castings have been elaborated. Pouring process of all casting versions of EN GJL-200 quality was performed followed by investigation of casting quality and process parameters interaction. The influence of clamp position, ingates size and temperature distribution during casting solidification on microstructure development, hardness and tensile strength of grey cast iron EN GJL-200 casting samples was determined and compared with the results obtained by numerical simulation.

Izvorni jezik
Engleski

Znanstvena područja
Metalurgija

Napomena
Glavni autor: Zovko Brodarac, Zdenka

POVEZANOST RADA