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Article | REF: RE41 V2

Electromagnetic control of free interfaces

Authors: Jacqueline ETAY, Yves FAUTRELLE

Publication date: April 10, 2016

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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 I 0 , pulsed at frequency f (in Hz).

I=I0 cos(2πf⋅t)

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...

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Levitation and electromagnetic forming
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