Cutting Force Control by Variable Feed and Spindle Speed in Ball-end Milling Process

이송 및 주축속도 가변속에 의한 볼 엔드밀 절삭공정의 절삭력 추적제어

There and two important variables in machining process control, which are feed and cutting speed. It is possible to improve the machining accuracy and the productivity by maintaining the optimal feed and cutting speed. In this work, a controller is designed to achieve on-line cutting force control based on the modeling of cutting process dynamics established through step response test. Two schemes are proposed and implemented. The first is feed control under the constant spindle speed and the second is spindle speed control under the constant feed. Finally, both are proved to work properly through simulation and experimentation.