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Experimental Study on High-Speed Turning of Free-Cutting Steel AISI 12L14 Using Multi-Layer Coated Carbide Tools
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Stability of Turning Process with a Continuous Delay Model

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Abstract:

An alternative physical explanation for process damping where a distributed cutting force model, along with a function distribution over the tool-chip interface, is assumed, is described. An exponential shape function is used to approximate the force distribution on the tool-chip interface. The distributed force model results in a more complicated governing equation, a second-order delayed integrodifferential equation, which involves both a discrete and distributed delay. An approach to transform and normalize the governing equation of motion into a third-order discrete system is described and the state-space representation of the new system is obtained. The semi-discretization method is then used to chart the stability boundaries for turning operation.

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Periodical:

Advanced Materials Research (Volume 500)

Pages:

20-25

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.500.20

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Cite this paper

Online since:

April 2012

Authors:

Qing Hua Song, Xing Ai, Bing Guo

Keywords:

Continuous Delay, Distributed Cutting Force, Process Damping, Stability

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© 2012 Trans Tech Publications Ltd. All Rights Reserved

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