Turning long workpieces by changing the machining parameters

Abstract The paper represents a method for computerized determination of optimum cutting variables on turning machines. The method takes into consideration the variation of static stiffness of the machine-workpiece system along the workpiece axis. The systems stiffness has great influence on machining accuracy when cutting long workpieces L / D > 6. Mathematical models have been derived and tested by numerical examples solved on computer by using the gradient method. The paper also discusses the application of this method through Adaptive Control System.