Abstract
During the milling operation, some factors such as the cutting parameters and the spindle type and speed can influence the cutting force attitude consequently the state of the finished part. In this work, a High Speed Milling (HSM) spindle supported by a pair of Active Magnetic Bearings (AMB) is modeled. The shaft is discretized with Timoshenko beam finites elements. The six degrees of freedom of both rigid and elastic motions are considered. Electromagnetic forces are modeled by linear springs and dampers. A peripheral milling model is suggested to predict the dynamic cutting force and the tool tip response. Dynamic coefficients of bearings with four, six and eight electromagnets are considered and plotted to study the spindle dynamic behavior.
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Bouaziz, A., Barkallah, M., Bouaziz, S., Cholley, JY., Haddar, M. (2014). Non-linear Stiffness and Damping Coefficients Effect on a High Speed AMB Spindle in Peripheral Milling. In: Abbes, M., Choley, JY., Chaari, F., Jarraya, A., Haddar, M. (eds) Mechatronic Systems: Theory and Applications. Lecture Notes in Mechanical Engineering. Springer, Cham. https://doi.org/10.1007/978-3-319-07170-1_10
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DOI: https://doi.org/10.1007/978-3-319-07170-1_10
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