Study on Cutter Trace Calculation and Interference Checking for Complex Surfaces NC Machining
Cutter trace calculation and interference checking play a dominant role in the NC machining of complex surface. In this paper the conceptions of the final movement and the orientation-distance have been proposed. It is proved that the two points with minimal orientation-distance on a pair of smooth surfaces are conjugate points. Thus the conjugate problem between the two surfaces is converted into optimization process of orientation-distance function. Combining minimal orientation-distance principle with five-point optimization method, the minimal orientation-distance algorithm has been proposed to calculate the cutter trace. The cutter trace and the cutter interference are achieved respectively by local and global optimization of the orientation-distance function based on the minimal orientation-distance algorithm and GA. The validity of this new algorithm is also proved by helicoids NC machining.
Liangchi Zhang, Chunliang Zhang and Tielin Shi
Z. Y. Duan et al., "Study on Cutter Trace Calculation and Interference Checking for Complex Surfaces NC Machining", Advanced Materials Research, Vols. 139-141, pp. 1215-1218, 2010