Shear-thickening polishing of inner raceway surface of bearing and suppression of edge effect

Shear-thickening polishing is a non-traditional finishing method that uses the shear thickening effect by impacting non-Newtonian fluid over machining surface. As result, it forms velocity gradient increases viscosity sharply, producing flexible fixed abrasive tool to remove material. applied for outer surface of rotary workpiece in previous work. The material removal distribution on inner completely different from those due structures. thickened slurry tends form relatively dense boundary layer surface, resulting decrease quality and efficiency. present study investigates impact angle obtain uniform morphology ring’s shear-thickening process. raceway ring tapered roller bearing 30203 was taken as object. numerical model built according rheological performance slurry. A mathematical geometric used explore real able accurately predict experimental conditions, results simulation were good agreement with model’s predictions. In fixture, guide block introduced flow slurry, ensuring consistent across whole optimal show average roughness measured Ra reduces 300 42.9 nm 30 min, which further drops 11.16 90 min variance 0.58 nm2. conclusion could be drawn studies this paper achievable through properly designed STP