Application Of Voronoi Diagram In Machining Path Planning

The purpose of this study is generation end-to-end spiral scanning path based on the Voronoi diagram. The focus of the thesis is algorithms and strategies interrelated in the process of generating spiral offsetting grounded on Voronoi diagram. Presenting the definitions of associated bisector and non-associated bisector. According as initial intersections candidates, divides contour bisectors into two groups: associated and non-associated bisectors for decreasing the number of candidate bisectors when searching inner-most points. Presenting two new viewpoints that based on the definitions. The lemma of circulation time when searching for inner-most points; the lemma of inner-most point must be associated bisector when scanning non-associated but not all inner-most points could be found. Searching inner-most point algorithm that ground on the lemmas. The algorithm has less initial candidate bisectors and less circulation time. In a modern CNC Milling and Rapid Prototyping and other layered Manufacturing Technology, processing path planning process is always one of the most important elements, and the key factor effect precision and efficiency. The conclusion of the project that presents spiral tool-path programming based on Voronoi diagram could be also used in Rapid Prototyping.