Calculation of optimum cutting conditions for turning operations using a machining theory

A method is described for calculating the optimum cutting conditions in tur ning for objective criteria such as minimum cost or maximum production rate . The method uses a variable flow stress machining theory to predict cuttin g forces, stresses, etc, which are then used to check process constraints s uch as machine power, tool plastic deformation and built-up edge formation. A modified form of Taylor tool life equation where the constants are deter mined using the machining theory has been employed in predicting tool life for the optimisation procedure. The obtained results indicate that the desc ribed method is capable of selecting the appropriate cutting conditions. (C ) 2000 Elsevier Science Ltd. All rights reserved.