Naslov
Mathematical Model of Directional Solidification of Leaded Red Brass Flange by Means of Graphite Chill

Autori
Grozdanić, Vladimir

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

Izvornik
CIM '99 Computer Integrated Manufacturing and High Speed Machining / Cebalo, Roko ; Schulz, Herbert - Zagreb : Hrvatska udruga proizvodnog strojarstva (HUPS), 1999, 33-40

Skup
5. International Scientific Conference on Production EngineeringCIM '99 Computer Integrated Manufacturing and High Speed Machining

Mjesto i datum
Opatija, Hrvatska, 17.06.1999. - 18.06.1999

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
mathematical model; directional solidification; leaded red brass flange; graphite chill

Sažetak
Formulated mathematical model and the numerical simulation of directional solidification of leaded red brass flange have been presented in the paper. Mathematical model is based on physical realistic assumptions, and it is solved by finite difference method - implicit alternating directions method. This method has great accuracy and it is of second order with regard to approximation of time and space. initial conditions are analytical solution of heat of fusion incorporated in the equation for specific heat of metal, and temperaturely dependent thermophysical properties of all materials in the system mold-casting-core-chill, enable to numerically accuratly represent solidification of the flange, that is the casting which is a common example in foundry practice. Simulation of directional solidification enables that in a modern and scientific way points to the points in casting where defect occurrence is possible, and how to prevent them using the chill.

Izvorni jezik
Engleski

Znanstvena područja
Metalurgija

POVEZANOST RADA