Adaptive pole-zero cancellation in grinding force control

This paper describes the development of an adaptive force controller for th e grinding process, Using a real-time grinding model an adaptive pole-zero cancellation technique is developed and implemented to reduce the grinding process variation. Real-time model parameter estimation and controller desi gns are implemented to achieve higher bandwidth control capability than is presently available in machine tool controllers. The results of this resear ch have culminated in a stable adaptive force controller for grinding, and have demonstrated the potential for increasing productivity, The implementa tion of this adaptive pole-zero cancellation in force controlled grinding p rovides a superior surface following capability for fine finishing, as comp ared to fixed gain controllers.