Veliko Donchev

Electron Beam Melting and Recycling of Nickel
Vania Vassileva, Katia Vutova, Veliko Donchev, Alexander Stoimenov, Dinesh Amalnerkar, Nagegownivari Munirathnam

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Experimental and theoretical investigations of the process parameters at electron beam melting and refining (EBMR) of nickel samples with the purpose of improving the composition of the performed ingots are presented and discussed. ...  read more

Economic and Conservative Numerical Scheme for Non-Stationary Heat Model for EBMR
Veliko Donchev, Katia Vutova, Tatiana Chernogorova

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Economic and conservative numerical method is proposed for discretization and numerical simulation of non-stationary heat model concerning electron beam melting and refining (EBMR) of metals. The axis-symmetric problem is ...  read more