Evaluation of cutting performance of machining centers

Summary The paper discusses the theoretical background for Cutting Performance testing in a new ASME draft standard dealing with chatter and with effects of cutting force on workpiece accuracy. The most important measures for assuring that results be significant for comparative assessment and repetitive are the choice of tools and of the cutting speed. The tools are so chosen as to generate “spindle modes” and not “tool modes”. The spindle speeds are so chosen as to be above the range of “process damping” and below the range of significant “stability lobing”.