Stability Analysis of the Separated Longitudinal-torsional Composite Ultrasonic Milling

doi:10.3969/j.issn.1000-1093.2015.07.022

Abstract

Abstract: The motion characteristics of separated longitudinal-torsional composite ultrasonic milling are analyzed based on the kinematics synthesis principle，and the essential characteristics of reducing the cutting force, promoting the chip removing and improving the tool life are elucidated. The dynamic model and the stability region analytical model of the separated longitudinal-torsional composite ultrasonic milling are constructed based on the theory of structural dynamics by considering the effects of longitudinal-torsional composite ultrasonic vibration. On the basis of that, the stability lobe diagram of cutting system is obtained by using the software MATLAB 7.1. the carbon fiber composite material is used for the experimental study. The experimental results show a good agreement with the numerical results, thus confirming the correctness of theoretical model and stability lobe diagram.

Key words: manufaturing technology and equipment, ultrasonic machining, longitudinal-torsional composite vibration, stability, lobe diagram

CLC Number:

TB115
TB552

TANG Jun， ZHAO Bo. Stability Analysis of the Separated Longitudinal-torsional Composite Ultrasonic Milling[J]. Acta Armamentarii, 2015, 36(7): 1318-1325.

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