Analysis of ultrasonic assisted machining (UAM) on regenerative chatter in turning

Tabatabaei, Seyed Mahmoud; Behbahani, Saeed; Mirian, Saeed

doi:10.1016/j.jmatprotec.2012.09.018

Cited by 39 publications

(17 citation statements)

References 18 publications

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“…It is obvious that the red line is above the black line under any spindle speed in the researched scope, which means that VAM can always have a positive effect on cutting stability. The stability lobe diagram for CM is the same with the result shown in [11], however, the stability lobe diagram for VAM shows a different result. In [11], under the spindle speed of 1400 rpm, the allowable depth of cut in VAM is less than that in CM, which is conflicting to Fig.4.…”

Section: Case Study and Verification By Time-domain Simulationsupporting

confidence: 72%

“…A vibration assisted turning process is studied and the corresponding configuration is described in details in [11]. illustrates the mechanism of generating the pulsating cutting forces in VAM.…”

Section: Analytical Force Modeling For Vammentioning

confidence: 99%

“…The parameters for stability analysis are from [11], which are listed in Table 2. 4 shows the obtained stability lobe diagram of CM (shown in black line) and VAM (shown in red line).…”

Section: Case Study and Verification By Time-domain Simulationmentioning

confidence: 99%

“…However, stability lobe diagram (SLD) is unavailable in their paper to give a global comparison of the stability behavior under a wide range of cutting conditions so that it is not exact to claim that vibration assisted machining can always achieve a higher cutting stability in their studies. Tabatabaei et al [11] tried to draw the SLD for VAM using conventional frequency-domain method. However, they made the time delay τ equal to the time period T in their analysis, which is very limited because τ is determined by spindle speed, which is changeable, while T is determined by vibration frequency, which is almost fixed to the resonant frequency of cutting tool in VAM.…”

Section: Introductionmentioning

confidence: 99%

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Analysis of Cutting Stability in Vibration Assisted Machining Using Ananalytical Predictive Force Model

2015

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Vibration assisted machining (VAM) adds sinusoidal tool vibration to the conventional machining (CM) process. It is generally recognized that VAM can effectively improve machining quality and machining efficiency, however, the theoretical basis for this is not fully developed. One feasible explanation is about the improvement of cutting stability. In the previous literatures, time-domain simulations of chatter for CM and VAM have been compared, showing VAM can suppress chatter and increase cutting stability under various conditions. However, the stability lobe diagram that gives a global picture of the stability behavior is still unavailable for VAM. This paper is dedicated to draw the stability lobe diagram for VAM and compare it with that for CM. An analytical predictive force model is developed to determine the dynamic cutting force in VAM, incorporating material properties, tool geometry, cutting conditions and vibration parameters. Then a stability analysis based on the proposed force model is done and the corresponding stability lobe diagram is obtained, which shows the effect of VAM on cutting stability on a large spindle speed scale. Finally, cutting experiments about surface roughness are carried out to verify the theoretical conclusion.

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Section: Case Study and Verification By Time-domain Simulationsupporting

confidence: 72%

Section: Analytical Force Modeling For Vammentioning

confidence: 99%

“…The parameters for stability analysis are from [11], which are listed in Table 2. 4 shows the obtained stability lobe diagram of CM (shown in black line) and VAM (shown in red line).…”

Section: Case Study and Verification By Time-domain Simulationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Analysis of Cutting Stability in Vibration Assisted Machining Using Ananalytical Predictive Force Model

2015

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“…Otherwise, high-quality surface finish [9] and long tool life [13] can be obtained, and the regenerative chatter can be suppressed effectively [14,15].…”

Section: Introductionmentioning

confidence: 99%

Analysis and modeling of force in orthogonal elliptical vibration cutting

Bai

Sun

Gao

et al. 2015

Int J Adv Manuf Technol

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This paper aims to reveal the material removal mechanisms of the elliptical vibration cutting (EVC) and present the predicted model of orthogonal cutting force. Further study of mechanism will be helpful to explain the phenomena that EVC can reduce the cutting force, lower cutting temperature, and improve the surface integrity. In each overlapping EVC cycle, almost all the parameters are time-varying, of which two important factors are focused: (i) transient thickness of cut and (ii) transient shear angle. The analysis model simplified the complex process of the EVC as conventional cutting (CC) which considering two transient variables. This paper presents a non-equidistant shear zone model to predict the shear angle, tool-chip friction angle, and shear stress in CC under the same conditions of the EVC. Then, the transient thickness of cut and transient shear angle are investigated. Thus, an analytical model of the force in EVC is proposed. The model is available to predict the cutting force of the EVC accurately without any experimental parameters in CC. In addition, experimental results available in the literature are conducted for comparison, which are in well agreement with the analysis model

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