Modeling and experimental research on residual height of aspheric arc envelope grinding

The grinding marks on the workpiece surface not only seriously affect the product's performance but also increase the workload of subsequent polishing, thus severely impacting the production efficiency of the product. Arc envelope grinding is a common method used for machining brittle optical components. A surface residual height prediction algorithm, considering the wheel feed motion, was developed based on discrete network modeling. The algorithm achieves high predictive accuracy in experimental observations. The effects of conic section coefficients, wheel arc radius, workpiece curvature radius, and processing point density on the surface residual height are analyzed, and a strategy for setting process parameters is proposed. These findings provide valuable insights for grinding path optimization and surface residual height control in aspheric manufacturing.