ROUGHNESS, AMPLITUDE DISTRIBUTION AND BEARING AREA CURVE DURING CNC MACHINING OF Al7SiMg - BAROIU, Nicușor; TEODOR, Virgil; ILIE, Mariana; MOROȘANU, Georgiana-; CRĂCIUN, Răzvan (Annals of ”Dunarea de Jos” University of Galati, Fascicle V, Technologies in machine building, 2025)