Pre-processing approach for cutter interference removal

Detecting and removing gouges in the process of toolpath generation for mac hining free forms is an important phase. The modules of gouge removal are c onsidered to be vital in any computer aided manufacturing (CAM) software. I nstead of generating toolpaths and then searching interference positions, t he process usually used, an approach is presented in which the surface is p reprocessed in order to discard the zones of potential interference probabi lity from the domain of definition of the surface. Afterwards, a simple swe eping process of the parametric space of the surface can generate interfere nce- free toolpaths. This pre- processing approach has the advantage of eli minating interferences regardless of the orientation of the surface, and th e chordal and scallop height tolerances for a given cutter.