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《China Mechanical Engineering》 2009-14
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Arc Spline Tool Path Generation for Triangular Mesh Surface Machining

Chen Xiaobing1,2 Liao Wenhe1 1.Nanjing University of Aeronautics and Astronautics,Nanjing,210016 2.Huaiyin Institute of Technology,Huai'an,Jiangsu,223002  
An approach to generate arc spline tool path of triangular mesh surface was proposed.CL(cutter location) points of interference-free line tool path were obtained by intersecting offset surface of triangular mesh surface with a series of parallel drive surfaces of variable path interval,and these points were classified into three categories and the redundant points of each category were removed with the least square fitting separately,then the fitting precision of CL points was revised by mapping tool path deviation into fitting deviation.After transition process of line-arc tool path,the developed arc spline tool path holds G1 continuity and high precision.Experimental result indicates that the presented approach is effective.
【Fund】: 国家863高技术研究发展计划资助项目(2005AA42040);; 江苏省高等学校自然科学研究计划资助项目(08KJD460005)
【CateGory Index】: TG659
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