A Study on the Wear Characteristics of Al7075 with Changes in Surface Roughness and Ti Thin Film Deposition Time

Table 3

Deposition time according to surface roughness.

	Surface roughness (sandpaper polishing number)
		#400	#800	#1200	#Alumina (0.3 µm)
Deposition time (min)	0′	1	2	3	4
	30′	5	6	7	8
	60′	9	10	11	12
	90′	13	14	15	16