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Multi-dimensional chatter stability for enhanced productivity in different parallel turning strategies

Azvar, Milad and Budak, Erhan (2017) Multi-dimensional chatter stability for enhanced productivity in different parallel turning strategies. International Journal of Machine Tools and Manufacture, 123 . pp. 116-128. ISSN 0890-6955 (Print) 1879-2170 (Online)

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Official URL: http://dx.doi.org/10.1016/j.ijmachtools.2017.08.005

Abstract

Simultaneous turning with extra cutting edges increases the material removal rate (MRR), and thus the productivity of the process. On one hand, chatter could be a fatal threat to the productivity and part quality in simultaneous turning operations of slender and flexible workpieces. On the other hand, stability of flexible part turning can be increased significantly if the process parameters are selected properly. In practice, however, ensuring a stable parallel turning of a flexible workpiece is approached by the costly process of trial and error. In order to tackle this problem, a multi-dimensional model for chatter stability analysis of parallel turning operation is presented where the effects of components’ dynamics, i.e. workpiece and cutters, in addition to insert’s geometry are accounted for. The stability model is formulated for two configurations of the parallel turning operation in frequency and time domains, and verified experimentally. Chatter-free and high productivity cutting conditions are determined through optimal parameter selection employing stability maps generated for each configuration.

Item Type:Article
Uncontrolled Keywords:Simultaneous turning; Multi-directional chatter; Flexible components; Insert geometry
Subjects:T Technology > TJ Mechanical engineering and machinery
T Technology > TJ Mechanical engineering and machinery > TJ241-254.7 Machine construction (General)
ID Code:35886
Deposited By:Erhan Budak
Deposited On:15 Aug 2018 10:38
Last Modified:15 Aug 2018 10:38

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