[en] Robotic machining is a growing technology in the field of mechanical manufacturing. This technique consists in machining materials with an industrial robot used to position and orientate the cutting tool. Whereas robotic machining offers larger workspaces thanks to the agility of robots, their lack of stiffness causes the appearance of vibrations which lead to inaccuracy on the produced parts. Consequently, this thesis suggests to develop and validate a robotic machining numerical model for a better understanding of the phenomena so as to identify optimized strategies.