Open Access

Table 15

Summary of alternative rank of Ti-6Al-4V Titanium Alloy milling process.

Trial. Normalization method Rank [31]

N1 N2 N3 N6 N7 N1 N2 N3 N6 N7
Entropy weight MEREC weight TOPSIS
A 1 6 5 7 6 5 7 7 7 7 6 7
A 2 8 7 8 8 7 8 8 8 8 8 9
A 3 7 8 6 7 8 5 6 5 6 7 4
A 4 3 3 3 3 3 3 3 3 3 3 3
A 5 4 4 4 4 4 6 4 6 5 4 6
A 6 9 9 9 9 9 9 9 9 9 9 8
A 7 2 2 2 2 2 2 2 2 2 2 2
A 8 1 1 1 1 1 1 1 1 1 1 1
A 9 5 6 5 5 6 4 5 4 4 5 5

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