CIRP Encyclopedia of Production Engineering

2014 Edition
| Editors: The International Academy for Production Engineering, Luc Laperrière, Gunther Reinhart

Adaptive Control

Reference work entry



Adaptive Control (AC) means that the digital controller adapts itself to the time varying of parameters of the plant dynamics at each control interval. The plant is considered to be machining, grinding, and metal forming processes in manufacturing engineering. Usually the AC is designed to constrain cutting, grinding or forming forces, torque or tool deflections at a desired level by manipulating feed or speed.

Theory and Application


If we consider machining as an example, the cutting forces vary as the tool-workpiece engagements change due to varying part features along the tool path. If a constant, conservative feed rate is set in the NC program by considering the worst engagement conditions that lead to highest force, machining cycle time becomes unnecessarily long in the remaining tool path segments. If a high feed rate is selected, the forces may be too large, which leads to tool breakage or excessive tool deflections. AC...

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Copyright information

© CIRP 2014

Authors and Affiliations

  1. 1.Mechanical EngineeringUniversity of British ColumbiaVancouverCanada