Title: Evaluation of a model for the prediction of milling stability for thin-walled components

Authors: H. Dalton, Gerry Byrne, Michael Steinicke

Addresses: The Advanced Manufacturing Science Research Group, School of Electrical, Electronic and Mechanical Engineering, University College Dublin, Belfield, Dublin 4, Ireland. ' The Advanced Manufacturing Science Research Group, School of Electrical, Electronic and Mechanical Engineering, University College Dublin, Belfield, Dublin 4, Ireland. ' Daimler Chrysler Research and Technology Centre, Ulm 89081, Germany

Abstract: The profitability of a high speed milling process is highly dependent upon its stability. This stability is determined by the dynamics of the machine-tool/tool/workpiece system and in turn limits the cutting parameters, which may be chosen. In order to machine components in the most efficient manner possible, cutting processes must be pushed to the boundaries of stability to achieve a high material removal rate as well as a high quality surface finish. When these components are of extremely high value, for example in the milling of integrated compressor components for the aerospace industry, these boundaries must be well-defined. In this paper, an analytical stability model for the milling process is presented. This model incorporates not only the tool-side dynamics but also the behaviour of the workpiece and takes the form of coupled single-body oscillators, with an experimentally determined coupling factor. This experimental methodology, with a focus upon the various measurement techniques used, is described in detail and the results of the investigation are discussed.

Keywords: milling stability; thin-walled components; modelling; stability prediction; high speed milling; tool-side dynamics; workpiece behaviour.

DOI: 10.1504/IJMTM.2008.019657

International Journal of Manufacturing Technology and Management, 2008 Vol.15 No.2, pp.187 - 196

Published online: 18 Jul 2008 *

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