Optimization on Stir Casting Process Parameters of Al7050/Nano-B₄C Metal Matrix Composites

Table 5

Response table for signal-to-noise ratios (larger is better).

Level	wt% B4C	Melting temperature (°C)	Stirring speed (rpm)	Stirring time (min)
1	44.39	44.72	44.80	44.81
2	44.84	44.97	44.94	44.92
3	45.30	44.84	44.79	44.80
Delta	0.91	0.25	0.14	0.12
Rank	1	2	3	4