engleski

Frequency Range Estimation for the Turning Process

Turning is the continuous process of separation of materials, but the values of individual components of force are variable over time. To determine the frequency of the variation of individual component, the measured data (cutting force component) has to be translate into Fourier row (using FFT). Linderberg and Lindstrom [1] have noticed that the maximum natural frequency of any component in the system tool-machine-processed is below 1 kHz. Frequency of creating of a lamella does not depend on the stiffness of machine, because natural frequencies of individual parts of machine tool are quite below this frequency. By performing of monitoring of the cutting process in the frequency domain, one can found all the changes that are happening in each of the participants or processes, and thus adjust the parameters of the cutting process. Increasing of the cutting speed influences the frequency range to increase.

Turning; FFT; Chip forms; Mechanical properties; Dynamic properties

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