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Table 2

Record of tool wear (mm).

Cutting speed 130 r/min 180 r/min 210 r/min 260 r/min
Comparisonal group 0.094 0.122 0.159 0.164
Experimental group 0.088 0.091 0.109 0.113
Difference value 0.006 0.031 0.050 0.051

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