A Theoretical Model of Dynamic Control – Critical Progress in Milling

Current machining in today's mold making market is extremely competitive. One way to achieve an edge over a competitor is to simply improve machining conditions being able to intelligently select proper parameters of the machining operation to stay out of chatter. Higher spindle speed and machining feed rate, combined with greater depth of cut, increases the removal rat and with it productivity. The combination of higher spindle sped and depth of cut makes instabilities [chatter] a far more significant concern.

Chatter causes reduced surface quality and accelerated tool war. Since chatter is so prevalent, traditional cutting parameters and processes are frequently rendered ineffective and inaccurate. Detecting chatter requires an understanding of the dynamic cutting force model. The aim of the present work is to develop a theoretical model for the prediction of dynamic stability using cutting process as a function of parameter.