Tool setting error compensation in large aspherical mirror grinding

Increasing competition and high accuracy make it necessary to optimize and evaluate the outcome of manufacturing processes. In tool grinding, models for the tool path and tool setting are of particular interest. In this article, to establish a valid general grinding model, an improved method for tool setting error compensation is proposed. We consequently developed models of tool path and tool setting, and verified the models by simulations. Lastly, the model is demonstrated through testing of a concave aspheric surface. The experiment results show that the introduced models are valid for grinding in aspherical mirror, since they are solely based on the geometry and process parameters, and hence are applicable for manufacturing process optimization.