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Toolpath Generation for Three-axis Round-end Milling of Triangular Mesh Surfaces  

Chung, Yun-Chan (Department of Die and Mould Engineering, Seoul National Univ. of Technology)
Publication Information
Journal of the Korean Society for Precision Engineering / v.26, no.2, 2009 , pp. 133-140 More about this Journal
Abstract
Presented in this paper is a method to generate round-endmill toolpaths for sculptured surfaces represented as a triangular mesh model. The proposed method is applicable in toolpath generation for ball-endmills and flat-endmills because the round-endmill is a generalized tool in three-axis NC (numerical control) milling. The method uses a wireframe model as the offset model that represents a cutter location surface. Since wireframe models are relatively simple and fast to calculate, the proposed method can process large models and keep high precision. Intersection points with the wireframe offset model and a tool guide plane are calculated, and intersection curves are constructed by tracing the intersection points. The final step of the method is extracting regular curves from the intersection curves including degenerate and self-intersected segments. The proposed method is implemented and tested, and a practical example is presented.
Keywords
Round-endmill; Toolpath; Triangular Mesh; Offset;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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