Cutting mechanisms and their influence on dynamic forces, vibrations and stability in micro-endmilling

Xinyu Liu, Martin B.G. Jun, Richard E. Devor, Shiv G. Kapoor

Research output: Contribution to conferencePaper

Abstract

A dynamic cutting force and vibration model of the micro-endmilling process that accounts for the dynamics of the micro-endmill, influences of the stable built-up-edge, and the effects of minimum chip thickness, elastic recovery, and the elastic-plastic nature in ploughing/rubbing has been developed. Experimental validation has been performed, and the model is shown to predict the cutting force and tool vibration within an average of 12%. Using the model developed, effects of the minimum chip thickness and elastic recovery on the cutting forces and vibrations as well as process stability of the micro-endmilling process have been examined. The results indicate that the large edge radius relative to the feedrate causes the process stability to be sensitive to feedrate, resulting in the low feedrate instability phenomenon. The elastic recovery significantly increases the peak-to-valley cutting forces and enlarges the unstable feedrate range.

Original languageEnglish (US)
Pages583-592
Number of pages10
DOIs
StatePublished - Dec 1 2004
Event2004 ASME International Mechanical Engineering Congress and Exposition, IMECE 2004 - Anaheim, CA, United States
Duration: Nov 13 2004Nov 19 2004

Other

Other2004 ASME International Mechanical Engineering Congress and Exposition, IMECE 2004
CountryUnited States
CityAnaheim, CA
Period11/13/0411/19/04

ASJC Scopus subject areas

  • Engineering(all)

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    Liu, X., Jun, M. B. G., Devor, R. E., & Kapoor, S. G. (2004). Cutting mechanisms and their influence on dynamic forces, vibrations and stability in micro-endmilling. 583-592. Paper presented at 2004 ASME International Mechanical Engineering Congress and Exposition, IMECE 2004, Anaheim, CA, United States. https://doi.org/10.1115/IMECE2004-62416