Tuneable clamping table for chatter avoidance in thin-walled part milling

J. Munoa, M. Sanz-Calle, Z. Dombovari, A. Iglesias, J. Pena-Barrio, G. Stepan

Research output: Contribution to journalArticle

Abstract

Regenerative chatter is one of the main productivity limiting factors for thin-walled part milling due to their inherently low stiffness and damping properties. This paper presents a new concept called tuneable clamping table (TCT) for thin-walled part machining, which permits controlling the table mode through a rotary spring and eddy current modules. This allows introducing damping to one critical mode of the thin-walled part without any direct contact in the machining area. Two novel frequency tuning strategies to increase the dynamic stiffness and milling stability for the TCT are presented. The concept of TCT is experimentally validated through milling tests, demonstrating a notorious stability increase compared to a regular clamping.

Original languageEnglish
JournalCIRP Annals
DOIs
Publication statusAccepted/In press - Jan 1 2020

Keywords

  • Chatter
  • Damping
  • Workholder

ASJC Scopus subject areas

  • Mechanical Engineering
  • Industrial and Manufacturing Engineering

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    Munoa, J., Sanz-Calle, M., Dombovari, Z., Iglesias, A., Pena-Barrio, J., & Stepan, G. (Accepted/In press). Tuneable clamping table for chatter avoidance in thin-walled part milling. CIRP Annals. https://doi.org/10.1016/j.cirp.2020.04.081