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Dynamic quality of machines is one of the dominant factors affecting both the geometric parameters of the accuracy of components, and the physicomechanical characteristics of the treated surface layer. Individually, each machine has a certain dynamic quality, which varies both in the process of operation and when the values of cutting mode parameters are changed. What is important in the manufacture of precision machine-and instrument components making is the assessment of the actual dynamic quality of machines according to the characteristics of vibroacoustic vibrations.