Research on high-precision geometric simulation for turning machining based on tool driven

Based on a proposed universal mathematical model for microcosmic working surface of turning trajectory, shapes of the working lathe tool and the workpiece, directions of the tool trajectories and other turning conditions are analyzed, and then the transient key point on which new microcosmic working surface may appear is calculated in this paper. A dynamic data structure which can adapt both of grid amount and shapes automatically is constructed, with which workpiece surface at any moment can be generated and cutting simulation can be implemented. This method can be used to describe microcosmic working surface information accurately, to provide detailed data for engineering analysis and furthermore it can be considered as a foundation for physical simulation to some extent.