Influence of torsional motion on the axial vibrations of a drilling tool

Sergey A. Voronov, Alexander M. Gouskov, Alexey S. Kvashnin, Eric Butcher, S. C. Sinha

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

The nonlinear dynamics of a tool commonly employed in deep hole drilling is analyzed. The tool is modeled as a two-degree of freedom system that vibrates in the axial and torsional directions as a result of the cutting process. The mechanical model of cutting forces is a nonlinear function of cutting tool displacement including state variables with time delay. The equations of new surface formation are constructed as a specific set. These equations naturally include the regeneration effect of oscillations while cutting, and it is possible to analyze continuous and intermittent cutting as stationary and non-stationary processes, respectively. The influence of the axial and torsional dynamics of the tool on chip formation is considered. The Poincaré maps of state variables for various sets of operating conditions are presented. The obtained results allow the prediction of conditions for stable continuous cutting and unstable regions. The time domain simulation allows determination of the chip shape most suitable for certain workpiece material and tool geometry. It is also shown that disregarding tool torsional vibrations may significantly change the chip formation process.

Original languageEnglish (US)
Pages (from-to)58-64
Number of pages7
JournalJournal of Computational and Nonlinear Dynamics
Volume2
Issue number1
DOIs
StatePublished - Jan 2007
Externally publishedYes

Fingerprint

Drilling
Vibrations (mechanical)
Vibration
Motion
Chip
Torsional Vibration
Vibrate
Cutting tools
Nonstationary Processes
Cutting Force
Regeneration
Time delay
Nonlinear Function
Nonlinear Dynamics
Influence
Time Domain
Time Delay
Unstable
Degree of freedom
Oscillation

ASJC Scopus subject areas

  • Mechanical Engineering
  • Applied Mathematics
  • Control and Systems Engineering

Cite this

Influence of torsional motion on the axial vibrations of a drilling tool. / Voronov, Sergey A.; Gouskov, Alexander M.; Kvashnin, Alexey S.; Butcher, Eric; Sinha, S. C.

In: Journal of Computational and Nonlinear Dynamics, Vol. 2, No. 1, 01.2007, p. 58-64.

Research output: Contribution to journalArticle

Voronov, Sergey A. ; Gouskov, Alexander M. ; Kvashnin, Alexey S. ; Butcher, Eric ; Sinha, S. C. / Influence of torsional motion on the axial vibrations of a drilling tool. In: Journal of Computational and Nonlinear Dynamics. 2007 ; Vol. 2, No. 1. pp. 58-64.
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