Modeling and Experimental Study of the Force and Surface Topography in Cylindrical Grinding of GH4169

GH4169 superalloy is an outstanding material widely used in aerospace, and precision grinding is widely applied to machine GH4169 superalloy, where the grinding force plays essential role on the ground surface quality, and the achieved surface topography. In this paper, the material removal mechanism under different machining parameters was analyzed in cylindrical grinding of GH4169 superalloy. The interaction process between abrasive grain and workpiece material is investigated to establish the simulation model of material removed based on the kinematics. The random wheel topography is constructed statistically using the probability density function that characterizes the distribution of the grains. The simulated grinding force and surface topography are agreement with the experimental results, where both the grinding force and surface roughness increased with decreasing grinding speed, as well as growing feed rate and grinding depth. The simulation model and calculation results could provide certain theoretical basis to explore the material removal mechanisms and improve the achieved surface quality in cylindrical grinding of GH4169 superalloy.