Title :
Feedrate compensation for constant cutting force turning
Author :
Toutant, R. ; Balakrishnan, S. ; Onyshko, S. ; Popplewell, N.
Author_Institution :
MPR Teltech Ltd., Burnaby, BC, Canada
Abstract :
The results of an investigation into the desing of an adaptive force control system for machine tool turning operations are examined. The control system modifies the feedrate in real time in order to keep the cutting force constant, while maintaining the accuracy of the tool path. The approach is unique in that a computer simulation is used offline to determine the control system gains that allow stable operation over a wide range of spindle speeds, independent of workpiece material. The scheme has been implemented successfully on an experimental lathe, and the results from an actual machining operation are presented.<>
Keywords :
adaptive control; digital simulation; force control; machine tools; machining; process computer control; real-time systems; velocity control; adaptive force control system; computer simulation; constant cutting force turning; feedrate compensation; lathe; machine tool; machining; real time; spindle speeds; tool path; Adaptive control; Adaptive systems; Computer simulation; Control system synthesis; Control systems; Force control; Machine tools; Programmable control; Real time systems; Turning;
Journal_Title :
Control Systems, IEEE
