CNC 볼엔드밀링 공정에서 2자유도 제어기를 이용한 절삭력 제어

Cutting Force Control Using A Two Degree-of-Freedom Controller in Ball-end Milling Processes

  • 양호석 (숭실대 대학원 기계공학과) ;
  • 심영복 (숭실대 대학원 기계공학과) ;
  • 이건복 (숭실대 기계공학과)
  • 발행 : 2002.05.01

초록

There are two important variables in machining process control, which are feed and cutting speed. In this work, a two degree-of-freedom controller is designed and implemented to achieve on-line cutting force control based on the modelling of cutting process dynamics which are established through step response test. Two schemes are proposed and implemented. The first is feed control under the constant spindle speed and spindle speed control under the constant fled speed. The second is a simultaneous control of feed and spindle speed. Those are confirmed to work properly. Especially the latter shows a faster response and we'll be evaluated to pare away workpiece by simultaneous control of position and cutting farce sooner or later.

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