3D Animation of Workpiece Transformation during Milling Operation

Abstract

Engagement zone is determined as instant intersection of workpiece and tool which is changing during milling operation. Engagement zone is identified as key parameter whose variations throughout the milling process causes the variations of cutting force. Knowledge of changes in engagement zone along the tool path is necessary for simulation and monitoring of the cutting force during the machining process. In milling process workpiece geometry is changing from blank shape to finished product. For determination of engagement zone geometry it is necessary to have accurate instant workpiece geometry and tool position. This paper presents geometrical representation of blank, tool and tool path used for animation of current workpiece geometry and tool position. Calculation and animation of engagement zone geometry is also shown.