Prediction of workpiece dynamics and its effects on chatter stability in milling
Budak, Erhan and Tunç, Lütfi Taner and Alan, Salih and Özgüven, H. Nevzat (2012) Prediction of workpiece dynamics and its effects on chatter stability in milling. CIRP Annals - Manufacturing Technology, 61 (1). pp. 339-342. ISSN 0007-8506
Official URL: http://dx.doi.org/10.1016/j.cirp.2012.03.144
The workpiece dynamics affect stability in machining of flexible parts. However, it is not a straightforward task to include it in the analysis since the workpiece dynamics continuously change due to mass removal and variation of the cutter contact. In this paper, a methodology for prediction of inprocess workpiece dynamics is presented, which is based on a structural dynamic modification using the FE model of the workpiece. The cutter location (CL) file is used to determine the removed elements at each tool location along a cycle. The proposed approach is demonstrated on example cases, and simulations are verified through experiments.
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