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Table 2 Orthogonal array L9 of Taguchi experiment design and experimental results

From: Experimental investigation of surface roughness, flank wear, chip morphology and cost estimation during machining of hardened AISI 4340 steel with coated carbide insert

Run Coded values Actual setting Experimental results
v f d v f d Surface roughness (Ra) Flank wear (VB)
1 1 1 1 100 0.05 0.2 0.994 0.05
2 1 2 2 100 0.09 0.4 0.633 0.073
3 1 3 3 100 0.13 0.6 0.916 0.105
4 2 1 2 160 0.05 0.4 0.836 0.095
5 2 2 3 160 0.09 0.6 0.574 0.124
6 2 3 1 160 0.13 0.2 0.883 0.145
7 3 1 3 220 0.05 0.6 0.698 0.185
8 3 2 1 220 0.09 0.2 0.566 0.167
9 3 3 2 220 0.13 0.4 0.776 0.225