Journal ArticleDOI
Analysis of compliance between the cutting tool and the workpiece on the stability of a turning process
Luciano Vela-Martínez,Juan Carlos Jáuregui-Correa,Eduardo Rubio-Cerda,Gilberto Herrera-Ruiz,Alejandro A. Lozano-Guzmán +4 more
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TLDR
In this article, a multiple degree of freedom model for chatter prediction in turning, based on compliance between the cutting tool and the workpiece, is presented and a linear stability analysis of the model in the frequency domain is performed and a method to construct typical stability charts is obtained.Abstract:
Chatter is a common vibration problem that limits productivity of machining processes, since its large amplitude vibrations causes poor surface finishing, premature damage and breakage of cutting tools, as well as mechanical system deterioration. This phenomenon is a condition of instability that has been classified as a self-excited vibration problem, which shows a nonlinear behavior characterized by the presence of limit cycles and jump phenomenon. In addition, subcritical Hopf and flip bifurcations are mathematical interpretations for loss of stability. Regeneration theory and linear time delay models are the most widely accepted explanations for the onset of chatter vibrations. On the other hand, models based on nonlinearities from structure and cutting process have been also proposed and studied under nonlinear dynamics and chaos theory. However, on both linear and nonlinear formulations usually the compliance between the workpiece and cutting tool has been ignored. In this work, a multiple degree of freedom model for chatter prediction in turning, based on compliance between the cutting tool and the workpiece, is presented. Hence, a better approach to the physical phenomenon is expected, since the effect of the dynamic characteristics of the cutting tool is also taken into account. In this study, a linear stability analysis of the model in the frequency domain is performed and a method to construct typical stability charts is obtained. The effect of the dynamics of the cutting tool on the stability of the process is analyzed as well.read more
Citations
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Journal ArticleDOI
Chatter in machining processes: A review
Guillem Quintana,Joaquim Ciurana +1 more
TL;DR: A review of the state of research on the chatter problem and classifications the existing methods developed to ensure stable cutting into those that use the lobbing effect, out-of-process or in-process, and those that, passively or actively, modify the system behavior as mentioned in this paper.
Journal ArticleDOI
A review of chatter vibration research in turning
TL;DR: In this article, some of the chatter stability prediction, chatter detection and chatter control techniques for the turning process are reviewed to summarize the status of current research in this field and to identify a research scope in this area.
Journal ArticleDOI
Chatter identification in end milling process based on EEMD and nonlinear dimensionless indicators
TL;DR: In this paper, a self-adaptive analysis method named ensemble empirical mode decomposition (EEMD) is adopted to analyze vibration signals and two nonlinear indices are extracted as chatter indicators.
Journal ArticleDOI
Improvement of chatter stability in boring operations with passive vibration absorbers
TL;DR: In this paper, the behavior of a boring bar with a passive dynamic vibration absorber (DVA) for chatter suppression was investigated. But the analysis of the stability of the two-degree-of-freedom model was not considered, and only its first mode of vibration was considered.
Journal ArticleDOI
A theoretical and experimental investigation of the tool-tip vibration and its influence upon surface generation in single-point diamond turning
TL;DR: In this article, the influence of tool-tip vibration on surface generation in single point diamond turning was investigated and two characteristic peaks (twin peaks) were identified and found to be corresponding to the tooltip vibrations by power spectrum density (PSD) analyses.
References
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Book
Manufacturing Automation: Metal Cutting Mechanics, Machine Tool Vibrations, and CNC Design
TL;DR: In this paper, the authors discuss the application of metal cutting to manufacturing problems, including the design of real-time trajectory generation and interpolation algorithms, and CNC-oriented error analysis.
Journal ArticleDOI
Analytical Prediction of Stability Lobes in Milling
Yusuf Altintas,Erhan Budak +1 more
TL;DR: In this article, a new method for the analytical prediction of stability lobes in milling is presented, which requires transfer functions of the structure at the cutter -workpiece contact zone, static cutting force coefficients, radial immersion and the number of teeth on the cutter.
Journal ArticleDOI
Theory of Self-Excited Machine-Tool Chatter: Contribution to Machine-Tool Chatter Research—1
Journal ArticleDOI
Analytical Prediction of Chatter Stability in Milling-part I : General Formulation
Erhan Budak,Yusuf Altintas +1 more
TL;DR: In this paper, a general formulation for the dynamic milling system is developed by modeling the cutter and workpiece as multi-degree-of-freedom structures, considering the varying dynamics in the axial direction.