Investigation on the Cutting Force and Surface Quality in Harmonically Vibrated Broaching (HVB)

Table 5

Valves and cylinder specifications.

Relief valve	Manufacturer	Diplomatic
	Technical code	MCD6-SP/51 N/K
	Pressure limit	Up to 350 bar
	Max flow	75 L/min
	Fluid temperature	−20 to 80°C
	Viscosity	25 cSt
Servo valve	Technical code	4WRPH 6 C3B12L
	Nominal flow	12 L/min
	Voltage	24 V/min
	Actuator	Servo solenoid
	Max working pressure	250 bar
	Max solenoid current	2.7 A
Hydraulic cylinder	Cylinder type	Two-way
	Cylinder diameter	40 mm
	Piston diameter	25 mm
	Displacement	195 mm
	Max pressure	210 bar