ISSN:
1662-9752
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Low frequency electromagnetic casting is a new developed technology that appears in therecent years. In this paper, a comprehensive mathematical model has been developed to describe theinteraction of the multiple physics fields during LFEC (low frequency electromagnetic casting)process. The model is based on a combination of the commercial finite element package ANSYS andthe commercial finite volume package FLUENT, with the former for calculation of theelectromagnetic field and the latter for calculation of the magnetic driven fluid flow, heat transfer andsolidification. Moreover, the model has been verified against the temperature measurements obtainedfrom one 7XXX aluminum alloy billet of 200mm in diameter, during the LFEC casting processes,respectively. There was a good agreement between the calculated results and the measured results.Further, the effects of electromagnetic frequency on fluid flow, temperature field and solidificationduring LFEC process have investigated numerically by using the mathematic model. The choosingcriterion of the electromagnetic frequency during LFEC process has been used in order to obtain thebest structure of the billets by analyzing the effects of fluid flow and temperature field on thesolidification process in the presence of electromagnetic field
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/02/16/transtech_doi~10.4028%252Fwww.scientific.net%252FMSF.546-549.707.pdf
Permalink
