**Author details**

Petrică Vizureanu\*, Mădălina Simona Bălțatu, Andrei Victor Sandu, Dragos Cristian Achitei, Dumitru Doru Burduhos Nergis and Manuela Cristina Perju Faculty of Materials Science and Engineering, Department of Technologies and Equipments for Materials Processing, "Gheorghe Asachi" Technical University of Iaşi, Mangeron, Iasi, Romania

\*Address all correspondence to: peviz2002@yahoo.com; peviz@tuiasi.ro

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