Analytical Modeling of the Tool Trajectory with Local Smoothing

To improve the quality and the precision of the complex surfaces obtained by high speed milling, it is necessary to ensure the continuity in tangency and curvature of the tool motion. This is possible using one of two re-interpolation methods of the tool path, with local or global smoothing. The present work consists to model the transition element geometry of the locally smoothed tool path based on the sinumerik CNC models. The smoothing element is assimilated to a quintic hermite polynomial and the experimental tests carried out showed a good correlation between the simulated and the smoothed tool path.