[Retracted] Characterization and Parametric Optimization of EN-10149-2 Steel Welded Joints Made by MIG Welding

Table 6

Response table for signal-to-noise ratio for hardness of WZ.

Level	Current	Voltage	Speed
1	43.35	43.02	43.37
2	43.38	43.77	43.60
3	43.91	43.86	43.67
Delta	0.56	0.84	0.31
Rank	2	1	3