The paper with the title “Effect of Wear on the Vibrating Behaviour of the Tool at Turning CW724R Alloy”, was presented as oral presentation in the frame of 13^th International Conference on Mechanical and Aerospace Engineering (ICMAE ’22), 20-22 July 2022 Bratislava-Slovakia, as a part of Research Project jointly fulfilled by ELKEME S.A. and Technical University of Kosice, focused on machinability behaviour of environmental-friendly brass alloys. In the same conference, Dr. George Pantazopoulos participated as a co-author of the above paper, as a member of the Technical Committee and as Session Chair in S5_Mechanical and Electronic Engineering, held on 21^st July.