The project was selected by independent experts as part of the BMBF framework 'Research for the production of tomorrow' within the 'innovation resource efficiency' of the ideas contest 'Improving energy efficiency in production technology'. MAGMASOFT ® (version 4.4) Release Notes and Manual, 2006.Ī. For this purpose, heat transfer coefficients were also determined on a test stand.
Clair: Inverse Heat Conduction: Ill-Posed Problems, Wiley Interscience, New York, NY, 1985, pp.
MAGMASOFT HEAT TRANSFER VERIFICATION
The verification of the determined IHTC values demonstrates that the inverse algorithm is an effective tool for determination of the IHTC at the squeeze casting–die interface.Ĭ.A. The comparison of the predicted cooling curves with the experimental measurement manifested the cooling temperatures calculated by the IHTC values determined in the current study were in the best agreement with experimental ones. With the applied pressure of 60 MPa, the peak IHTC values of aluminum alloy A443 from steps 1 to 5 varied from 5629 W/m 2K to 9419 W/m 2K. Similar characteristics of IHTC peak values were also observed at 30, 60, and 90 MPa applied pressures. The results showed the IHTCs initially reached a maximum peak value followed by a gradually decline to a lower level. In this work, IHTCs were determined by using the inverse algorithm based on measured temperature histories and finite-difference analysis in a five-step squeeze casting of aluminum alloy A443. However, it is difficult to determine the values of interfacial heat-transfer coefficients (IHTCs) in squeeze casting of aluminum alloys due to many influence factors. A critical portion of casting simulation is the heat transfer at the metal/mold interface. As an effective tool, simulation helps do the analysis and optimization in advance and undertake preventive action.
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