title   
  

Multi-dimensional chatter stability of parallel (simultaneous) turning operations

Azvar, Milad (2017) Multi-dimensional chatter stability of parallel (simultaneous) turning operations. [Thesis]

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Official URL: http://risc01.sabanciuniv.edu/record=b1655739 (Table of Contents)

Abstract

Simultaneous turning with extra cutting edges increases the material removal rate (MRR), and thus the productivity of the process. On one hand, chatter instability 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:Thesis
Additional Information:Yükseköğretim Kurulu Tez Merkezi Tez No: 478646.
Uncontrolled Keywords:Chatter stability. -- Simultaneous turning. -- Multi-directional chatter. -- Flexible components. -- Insert geometry. -- Parallel turning. -- Eş zamanlı tornalama. -- Çok yönlü tırlama. -- Esnek bileşenler. -- Kesici uç geometrisi. -- Paralel tornalama.
Subjects:T Technology > T Technology (General) > T055.4-60.8 Industrial engineering. Management engineering
ID Code:34638
Deposited By:IC-Cataloging
Deposited On:30 Apr 2018 15:24
Last Modified:30 Apr 2018 15:24

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