Investigation of the Combined Effects of Ultrasonic Vibration-Assisted Machining and Minimum Quantity Lubrication on Al7075-T6

Table 2

Design of experiments.

Parameters	Cutting speed (m/min)	Feed (mm/min)	Frequency (Hz)	Amplitude (µm)	Coolant condition
Levels	100	500	18200; 0 (CM)	8; 0 (CM)	CCF; MQL
	150	600
	200	700