Use of inverse stability solutions for identification of uncertainties in the dynamics of machining processes

doi:10.1007/s40436-018-0233-x

Advances in Manufacturing ›› 2018, Vol. 6 ›› Issue (3): 308-318.doi: 10.1007/s40436-018-0233-x

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Use of inverse stability solutions for identification of uncertainties in the dynamics of machining processes

Lutfi Taner Tunc¹, Orkun Ozsahin²

1 Integrated Manufacturing Technologies Research and Application Center, Faculty of Engineering and Natural Sciences, Sabanci University, 34956 Tuzla, Istanbul, Turkey;
2 Department of Mechanical Engineering, Middle East Technical University, Ankara, Turkey

Received:2017-10-24 Revised:2018-07-13 Online:2018-09-25 Published:2018-09-18
Contact: Lutfi Taner Tunc,ttunc@sabanciuniv.edu E-mail:ttunc@sabanciuniv.edu
Supported by:
The authors acknowledge the support of Turkish National Science Foundation (Grant No. 108M340).

Abstract

Abstract: Research on dynamics and stability of machining operations has attracted considerable attention. Currently, most studies focus on the forward solution of dynamics and stability in which material properties and the frequency response function at the tool tip are known to predict stable cutting conditions. However, the forward solution may fail to perform accurately in cases wherein the aforementioned information is partially known or varies based on the process conditions, or could involve several uncertainties in the dynamics. Under these circumstances, inverse stability solutions are immensely useful to identify the amount of variation in the effective damping or stiffness acting on the machining system. In this paper, the inverse stability solutions and their use for such purposes are discussed through relevant examples and case studies. Specific areas include identification of process damping at low cutting speeds and variations in spindle dynamics at high rotational speeds.

The full text can be downloaded at https://link.springer.com/content/pdf/10.1007%2Fs40436-018-0233-x.pdf

Key words: Inverse stability, Machining dynamics, High speed milling, Process damping, Spindle dynamics

Lutfi Taner Tunc, Orkun Ozsahin. Use of inverse stability solutions for identification of uncertainties in the dynamics of machining processes[J]. Advances in Manufacturing, 2018, 6(3): 308-318.

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Use of inverse stability solutions for identification of uncertainties in the dynamics of machining processes

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