3.4.2. T2—Flank Wear Measurement

In Table 13, the average flank wear values obtained from measurements performed on the clearance faces of the T2 tools are presented.


**Table 13.** VB values obtained from measurements performed on the clearance faces of T2 tools.

As seen in the analysis of T1, the variation of the flank wear for the T2 tools was deeply influenced by the feed rate, increasing slightly under the 75% feed rate condition, and registering a significant increase under the 125% feed rate condition. Once again, the original values of feed rate produced better results in terms of tool wear, even at 4 m of cutting length. The variation in cutting length induced a higher tool wear for the 125% feed

rate condition, registering a significant increase, whereas in the case of the 75% and 100% feed rates, the cutting length did not appear to influence the tools' wear so severely.
