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论文类型：期刊论文

发表时间：2008-10-15

发表刊物：Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)

收录刊物：EI、CPCI-S、Scopus

卷号：5315 LNAI

期号：PART 2

页面范围：1076-1085

ISSN号：3540885161

关键字：Cutting forces; Ball-end mill; Feedrate scheduling; NC machining

摘要：For improving machining efficiency, variable feedrate optimization instead of constant feedrate becomes very important under constraints of surface roughness and dynamic milling force. In this paper, a predictive force model is established for ball-end milling with considerations of cutter deflection and change of feedrate direction. The corresponding cutting force coefficients are regressed from the experimental data. Then the cutting force model is used for scheduling variable feedrate along the given toolpaths, and formulas of iterative optimization of feedrate are further given. The proposed feedrate scheduling strategy is tested under various machining conditions. Experimental results show that the proposed method can effectively reduce machining time while ensuring machining quality. © 2008 Springer Berlin Heidelberg.