It is of great significance to study the influencing factors of the surface topography of nickel-based superalloy GH4169 processed by end-milling to control the surface roughness and improve the machining quality of GH4169. Based on single-factor end-milling experiments

the effects of milling speed

milling depth

feed per tooth and milling width on surface roughness and 3D surface topography were investigated. The results show that the influence degree on surface roughness is as follows: Feed per tooth

milling width

milling speed

milling depth

etc. The machined surface mostly presents the texture of vertical and horizontal phase

and the degree of influence on the surface texture depth is as follows: Milling speed

milling depth

feed per tooth

milling width; Combined

with the processing surface roughness and 3D surface topography

the best processing parameters are: Milling speed V=100 m/min

milling depth t=0.1 mm

feed per tooth f

z

=0.025 mm/z

milling width a

w

=5 mm.