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A simple approach to analyze process damping in chatter vibration

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Abstract

This paper investigates how changes in chatter amplitude and frequency depend on process damping effect in dynamic turning process. For this purpose, the two degrees of freedom (TDOF) cutting system was modeled, and for an orthogonal turning system, the process damping model with a new simple approach was developed. To further explore the nature of the TDOF cutting model, a numerical simulation of the process was developed by this model. This simulation was able to overcome some of the weaknesses of the analytical model. The equations of motion for this cutting system were written as linear and nonlinear in the τ-decomposition form. The variation in the process damping ratios for different work materials was simply obtained by solving the nonlinear differential equations. A series of orthogonal chatter stability tests were performed for the identification of dynamic cutting force coefficients, using AISI-1040, Al-7075, and Al-6061 work materials, at a constant spindle speed. Finally, the experimental results were analyzed and compared with the simulation model, and it was observed that the results obtained through the experiments comply with the simulation model results.

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Authors and Affiliations

  1. Department of Mechanical Engineering, Dumlupinar University, Kutahya, Turkey

    Erol Türkeş

  2. Department of Mechanical Technologies, Selcuk University, Konya, Turkey

    Süleyman Neşeli

Authors
  1. Erol Türkeş
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  2. Süleyman Neşeli
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Correspondence to Süleyman Neşeli.

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Türkeş, E., Neşeli, S. A simple approach to analyze process damping in chatter vibration. Int J Adv Manuf Technol 70, 775–786 (2014). https://doi.org/10.1007/s00170-013-5307-0

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  • DOI: https://doi.org/10.1007/s00170-013-5307-0

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