INFLUENCE OF FLANK WEAR ON DECOMPOSITION OF CUTTING FORCES IN TURNING

Abstract

This paper deals with influence of flankwear on decomposition of cutting force in turning of roll bearing steel. The decomposition is carried out to evaluate the components of cutting force in the tool-chip as well as tool-workpiece interface. The decomposition enables evaluation of the shear and normal forces in the both interfaces. The results of experiments and the following calculations show that while conditions for chip separation in the tool-chip interface stays nearly untouched due to progressive development of fland wear, mechanical load of machined surface asssociated with components of cutting forces progressively increases with flank wear.

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