3. Levitation and electromagnetic forming
3.1 Electromagnetic levitation
The magnetic field B is created by an inductor through which flows an alternating current of intensity I (in A), maximum amplitude I0, pulsed at frequency f (in Hz).
The electromagnetic forces j x B induced in the liquid metal comprise a time-independent mean component and a pulsed component at 2f. In the medium and high frequency range, i.e. from a few tens to a few hundreds of kilohertz, and due to the inertia of the liquid,...
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Levitation and electromagnetic forming
Free surfaces moving in a pulsed magnetic field
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