Efficient experimental detection of milling stability boundary and the optimal axial immersion for helical mills

Daniel Bachrathy, Gabor Stepan

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In this paper, an optimal axial immersion is defined and it is calculated for the milling process. The analytical calculation is based on one degree of freedom model. A helical tool is considered during the calculation. Axial immersion values arc found where large material removal rate can be achieved while negligible and tolerable vibration occurs. We explain this with the help of the Fourier series of the time-periodic cutting force. To support our analytical results measurements were carried out. Instead of making numerous measurements with distinct spindle speeds, we used wedge-shaped work-pieces to speed-up the lengthy experiments. In this way, the axial immersion was increased continuously during the cutting process. The stability boundary and the optimal axial immersions could be found with a single test at cach spindle speed. We found that the vibration amplitudes were significantly reduced in case of the theoretically predicted optimal axial immersions.

Original languageEnglish
Title of host publicationIMETI 2008 - International Multi-Conference on Engineering and Technological Innovation, Proceedings
Pages7-11
Number of pages5
Publication statusPublished - Dec 1 2008
EventInternational Multi-Conference on Engineering and Technological Innovation, IMETI 2008 - Orlando, FL, United States
Duration: Jun 29 2008Jul 2 2008

Publication series

NameIMETI 2008 - International Multi-Conference on Engineering and Technological Innovation, Proceedings
Volume1

Other

OtherInternational Multi-Conference on Engineering and Technological Innovation, IMETI 2008
CountryUnited States
CityOrlando, FL
Period6/29/087/2/08

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Keywords

  • Chatter
  • Helical mills
  • High-performance milling
  • Stability
  • Time delay

ASJC Scopus subject areas

  • Management of Technology and Innovation

Cite this

Bachrathy, D., & Stepan, G. (2008). Efficient experimental detection of milling stability boundary and the optimal axial immersion for helical mills. In IMETI 2008 - International Multi-Conference on Engineering and Technological Innovation, Proceedings (pp. 7-11). (IMETI 2008 - International Multi-Conference on Engineering and Technological Innovation, Proceedings; Vol. 1).