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Large-scale levitation melting and casting of titanium alloys

S. Spitans1 , H. Franz1 , E. Baake2 , A. Jakoviċs3

1 ALD Vacuum Technologies GmbH, 63457 Hanau, Germany
2 Institute of Electrotechnology, Leibniz University of Hanover, 30167 Hanover, Germany
3 University of Latvia, LV1002 Riga, Latvia

In this work, large-scale electromagnetic levitation melting of metals in two-frequency horizontal fields is investigated. A coupled electromagnetic field and free surface flow problems are solved with a three-dimensional model that incorporates a Large Eddy Simulation turbulence description. The developed numerical model is used to design a pilot furnace for stable levitation melting of Al and Ti-6Al-4V samples up to 500 g. The new FastCast concept that utilizes the novel crucibleless levitation melting method for industrial mass production of single-shot castings (e.g., Ti-6Al-4V turbocharger impellers up to 500 g) is introduced. Figs 7, Refs 8.

Magnetohydrodynamics 53, No. 4, 633-642, 2017 [PDF, 1.85 Mb]

Copyright: Institute of Physics, University of Latvia
Electronic edition ISSN 1574-0579
Printed edition ISSN 0024-998X