Modeling of removal function and optimization of process parameters for robotic polishing M-ZnS
To study and optimize the material removal model for robotic polishing of M-ZnS and enhance the precision and cost-effectiveness of manufacturing M-ZnS optical components,the material removal model is refined using the finite element method and numerical simulation.A pressure field distribution model for a 10 mm asphalt polishing disc is developed,and the pressure distribution function is determined through curve fitting.The accuracy of the adjusted removal function model is verified with a less than 8%deviation when comparing simulation and experimental data.The polishing process parameters are opti-mized using a one-factor experimental method,suggesting a pressure range of 0.12 to 0.18 MPa and spin-dle speed ratios of 200/-10 to 200/-50 r/min for 10 mm discs.These optimizations were applied to pol-ish 100 mm M-ZnS planar optical elements.Post-polishing,the surface quality significantly improved with-in 80.39 min;the M-ZnS transitioned from light yellow to transparent,face shape PV decreased from 0.668 μm to 0.229 μm,with a 65%improvement,and surface roughness Sa went from 7.911 nm to 2.472 nm,with a 68%enhancement.Thus,robotic polishing proves vital for efficient,high-quality finishing of M-ZnS optical components.