Analysis of Indirect Measurement of Cutting Forces Turning Metal Cylindrical Shells

Cutting forces measurement is an important component of the machining processes development and control. The use of conventional direct measurement systems is often impossible as they interfere in the process’s dynamics. This work proposes a method of cutting force indirect estimation during turning thin-walled cylindrical shells. Calculation of the flexibility matrix has enabled us to relate measured displacements of certain workpiece’s points to the cutting force. An optimization approach for choosing the measurement points location has been proposed, based on the best conditioning of the flexibility matrix.