Clean-up tool path generation by contraction tool method for machining complex polyhedral models

Authors:
Yongfu Ren;Hong Tzong Yau;Yuan-Shin Lee
Affiliations:
Department of Industrial Engineering, North Carolina State University, Raleigh, NC;Department of Mechanical Engineering, National Chung Cheng University, Chiayi, Taiwan, ROC;Department of Industrial Engineering, North Carolina State University, Raleigh, NC
Venue:
Computers in Industry
Year:
2004

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Abstract

In high performance machining, multiple cutters of different sizes are used for roughing, finishing and clean-up cutting. In this paper, a contraction tool method is proposed to detect gouging and generate clean-up tool paths for machining complex polyhedral models. The proposed contraction tool method utilizes a series of intermediate virtual cutters to search for clean-up boundaries and construct the clean-up tool paths. The constructed clean-up tool paths consist of a set of clean-up CL-curves traced by the intermediate virtual cutters. The techniques presented in this paper can be used in CAD/CAM systems to automatically identify the clean-up regions of polyhedral models and to generate clean-up tool paths. Computer implementation and practical examples are also presented in this paper.