A Divide-and-Conquer Bat Algorithm with Direction of Mean Best Position for Optimization of Cutting Parameters in CNC Turnings

Table 1

Condition parameters for turning examples.

= 50 mm	= 300 mm	= 6 mm	= 50 m/min
= 0.1 mm/rev	= 1 mm	= 500 m/min	= 0.9 mm/rev
= 3 mm	= 50 m/min	= 0.1 mm/rev	= 1 mm
= 500 m/min	= 0.9 mm/rev	= 3 mm	= 5
= 1.75	= 0.75	= 0.75	= 0.95
= 0.85	= 2	= –1	= 0.4
= 0.2	= 0.105	= 1.2 mm	= 6×1011
= 25 min	= 45 min	= 200 kgf	= 5 kW
= 140	= 1000 °C	= 10 µm	= 7×10−4
= 0.3	= 1.5 min/edge	= 0.75 min/piece	= 2.5 $/edge
= 0.5 $/min	= 108	= 132	= 1
= 2.5	= 1