Table 2.

Wire electrical discharge machining (WEDM) parameters utilized during micro-channels screening.

No	Variable Name	Unit	Levels
			1	2	3
1	Pulse On-time	µs	1	2	3
2	Pulse Off-time	µs	20	25	30
3	Spark Voltage	V	55	60	65
4	Wire Tension	g	490	520	560
5	Wire feed rate	mm/min	90	110	140