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Advances in Manufacturing

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07-08-2018

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

Authors: Lutfi Taner Tunc, Orkun Ozsahin

Published in: Advances in Manufacturing | Issue 3/2018

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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.

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Title: Use of inverse stability solutions for identification of uncertainties in the dynamics of machining processes
Authors: Lutfi Taner Tunc
Orkun Ozsahin
Publication date: 07-08-2018
Publisher: Shanghai University
Published in: Advances in Manufacturing / Issue 3/2018
Print ISSN: 2095-3127
Electronic ISSN: 2195-3597
DOI: https://doi.org/10.1007/s40436-018-0233-x

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Point-based tool representations for modeling complex tool shapes and runout for the simulation of process forces and chatter vibrations

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