Journal
INTERNATIONAL JOURNAL OF MACHINE TOOLS & MANUFACTURE
Volume 67, Issue -, Pages 35-44Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.ijmachtools.2013.01.004
Keywords
Stability prediction; Longitudinal turning; Flexible tool; Collocation method
Funding
- UPV/EHU
- [UFI 11/29]
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During the turning of large and heavy cases and rings, the tool must be cantilevered over long distances, and chatter due to modes in the tangential direction may occur. This paper proposes a numerical method based on a nonlinear cutting force model, which includes the effects of the cutting parameters to construct precise stability charts for this special machining case. This method has been successfully applied to general cutting geometries in rough and medium longitudinal turning operations, assuming a rigid workpiece and a flexible tool. This study proposes a dynamic model to implement the effects of the tangential mode on chip regeneration in the regenerative plane based on an experimentally obtained dynamic displacement factor. From the simulations and experimental results, the model provides a reliable approach to obtain chatter-free turning conditions. (C) 2013 Elsevier Ltd. All rights reserved.
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