Investigation on Surface Roughness of Inconel 718 in Photochemical Machining

Table 4

Summary of ANOVA for surface roughness.

Concentration in grams/liters	Sample weight before etching in grams	Sample weight after etching in grams	Weight loss in grams
(A) 500	0.977	0.958	0.019
(B) 550	0.971	0.956	0.015
(C) 600	0.982	0.970	0.012