Fig. 7

Distribution of \({\varepsilon _{y\_{\text{ave}}}}\) and its relationships to cutting angle (\(\theta\)) and depth of cut (d). Characters in the bottom-right corner of each contour map represent the chip type. The black horizontal dashed line and red horizontal line represent the path of the cutting edge and the original LR surface, respectively. The white area represents the area where \({\varepsilon _{y\_{\text{ave}}}}\) was not calculated because \({C_{{\text{ZNCC}}}}\) was lower than 0.5 for more than three times out of five cuts. (Color figure online)