Five-Axis Contour Error Control Based on Spatial Iterative Learning

In this paper, a contour error control strategy based on spatial iterative learning (sILC) is developed for repetitive processing of five-axis computer numerical (CNC) machine tools. A curve approximation method with an adaptive moving window to achieve accurate tool position and orientation estimation, sILC proposed. The compensation derived using algorithm modify the geometric reference path instead modifying controller. experimental results show that proposed reduces errors CNC tools, it outperforms traditional tracking control. Note Practitioners—This paper aims propose effective scheme. At present, most methods rely modification controller, which not allowed in commercial systems. Therefore, we sILC, modifies system’s path. Experimental can reduce errors, while maintaining machining efficiency.