Table 1.

Experimental conditions of electrochemical machining of heat dissipation holes.

Experimental Project	Condition
Tool electrode	Titanium alloy tube electrode (covered with insulating film)
Workpiece	GH4169 nickel-based superalloy
Processing voltage	12–24 V DC voltage [12,13]
Electrolyte concentrations	16% sodium nitrate solution
Feed rate	6–12 mm/min [12,13]