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Title: | AUTOMATED FIVE-AXIS TOOL PATH GENERATION BASED ON DYNAMIC ANALYSIS | Authors: | WANG SIBAO | Keywords: | tool path generation, five-axis machine, interference, cutting force, chatter, dynamic analysis, | Issue Date: | 11-Aug-2015 | Citation: | WANG SIBAO (2015-08-11). AUTOMATED FIVE-AXIS TOOL PATH GENERATION BASED ON DYNAMIC ANALYSIS. ScholarBank@NUS Repository. | Abstract: | In this thesis, automated 5-axis tool path generation considering true dynamic factors (cutting force and chatter) is studied. The research objectives are to develop models for predicting cutting forces and chatter in 5-axis milling and algorithm for optimizing the cutter posture at each cutter contact point in tool path generation. When chatter in 5-axis machining can be predicted, posture stability (PSG) can be constructed. Then, combining the accessibility-map together, chatter- and interference-free (CIF) cutter posture range can be identified. Optimal cutter posture from CIF-map towards the minimal maximum deflection cutting force (MDC-F) can be determined and subsequently optimal tool path considering true machining dynamics can be generated. The proposed cutting force prediction and chatter prediction methods in 5-axis milling have been validated by experiments. The CIF-map construction has been studied by simulations. It represents a significant step in 5-axis tool path generation from static model to dynamic mode. | URI: | http://scholarbank.nus.edu.sg/handle/10635/121780 |
Appears in Collections: | Ph.D Theses (Open) |
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