Forced vibration response during the milling of thin-walled workpieces

ZHANG Jie; LIU Chengying

doi:10.16511/j.cnki.qhdxxb.2018.25.042

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Journal of Tsinghua University(Science and Technology) ›› 2018, Vol. 58 ›› Issue (11) : 961-965. DOI: 10.16511/j.cnki.qhdxxb.2018.25.042

MECHANICAL ENGINEERING

Forced vibration response during the milling of thin-walled workpieces

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Abstract

Strong forced vibrations can easily occur while milling thin-walled workpieces because of their low stiffness. Such vibrations not only reduce the product quality, but also limit the choose of the machining parameters. The forced vibrations of thin-walled workpieces during milling were investigated by using an R-end milling cutter to reduce the cutting forces and the cutting coefficients in cutting experiments. The dynamics of the thin-walled workpiece were analyzed based on modal experiments to obtain the transfer function and modal parameters of the tool-workpiece system. The forced vibration response was then predicted using a time-domain method. The simulations indicate that a proper nose radius can suppress the forced vibration response.

Key words

forced vibration response (FVR) / thin-walled workpiece / modal analysis / machining parameters

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ZHANG Jie, LIU Chengying. Forced vibration response during the milling of thin-walled workpieces[J]. Journal of Tsinghua University(Science and Technology). 2018, 58(11): 961-965 https://doi.org/10.16511/j.cnki.qhdxxb.2018.25.042

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