Calculation and Estimation of Surface Roughness and Energy Consumption in Milling of 6061 Alloy

Table 6

S/N response table for surface roughness and energy consumption.

	Level	V (m/min)	f (mm/rev)	DOC (mm)	Cm
Ra (μm)	1	−10.172	−5.618	−6.164	−6.140
	2	−9.536	−7.609	−7.507	−9.489
	3	−5.242	−8.028	−8.059
	4	−6.307	−10.002	−9.527
	Delta	4.929	4.384	3.364
	Rank	1	2	3	4
Rz (μm)	1	−25.51	−22.32	−21.69	−21.26
	2	−25.73	−22.25	−23.48	−25.13
	3	−19.73	−23.77	−22.72
	4	−21.81	−24.43	−24.88
	Delta	6.00	2.18	3.19	3.87
	Rank	1	4	3	2
Pcutting S (W)	1	−27.71	−50.30	−44.62	−52.09
	2	−55.44	−50.11	−51.44	−52.75
	3	−62.15	−56.35	−58.08
	4	−64.37	−52.91	−55.54
	Delta	36.66	6.25	13.46	0.66
	Rank	1	3	2	4
Pcutting X (W)	1	−43.21	−37.47	−34.84	−39.22
	2	−43.46	−38.14	−40.11	−42.88
	3	−37.70	−44.04	−44.30
	4	−39.84	−44.55	−44.94
	Delta	5.76	7.08	10.10	3.66
	Rank	3	2	1	4
SEC S (J)	1	−36.53	−32.51	−33.34	−28.32
	2	−27.21	−28.95	−28.85	−27.80
	3	−24.33	−26.36	−26.09
	4	−24.18	−24.43	−23.96
	Delta	12.35	8.09	9.38	0.52
	Rank	1	3	2	4
SEC X (J)	1	−18.376	−14.417	−16.803	−11.388
	2	−14.094	−11.978	−12.157	−12.571
	3	−8.837	−11.642	−10.560
	4	−6.612	−9.881	−8.398
	Delta	11.764	4.536	8.404	1.184
	Rank	1	3	2	4