End milling of CF/PEEK under cryogenic conditions - Effects of liquefied carbon dioxide and liquefied nitrogen

Tasuku Higaino, Tojiro Aoyama, Hitoshi Ogawa

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

Abstract

The problems associated with machining CFRTP (carbon fiber reinforced thermoplastics) are short tool life and burrs. In this study, side milling tests are carried out dry and with two types of coolants liquefied carbon dioxide (LCO2) and liquefied nitrogen (LN2). The workpiece material is a composite material made of carbon fibers and polyetheretherketon (CF/PEEK) Cutting force, surface integrity and tool wear are evaluated, and the elastic modulus of the CF/PEEK is examined. The use of liquefied nitrogen as a coolant suppresses burrs effectively. There is no significant difference in tool wear between the dry and cryogenic conditions. The finished surface roughness increases with the cutting length, and milling with liquefied nitrogen shows the highest surface roughness. The elastic modulus of CF/PEEK under cryogenic condition is higher than that at room temperature.

Original languageEnglish
Title of host publicationProceedings of the 8th International Conference on Leading Edge Manufacturing in 21st Century, LEM 2015
PublisherJapan Society of Mechanical Engineers
Publication statusPublished - 2015 Oct 18
Event8th International Conference on Leading Edge Manufacturing in 21st Century, LEM 2015 - Kyoto, Japan
Duration: 2015 Oct 182015 Oct 22

Other

Other8th International Conference on Leading Edge Manufacturing in 21st Century, LEM 2015
CountryJapan
CityKyoto
Period15/10/1815/10/22

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Keywords

  • Burrs
  • CF/PEEK
  • CFRTP
  • Cryogenic machining
  • Elastic modulus
  • Liquefied nitrogen

ASJC Scopus subject areas

  • Industrial and Manufacturing Engineering

Cite this

Higaino, T., Aoyama, T., & Ogawa, H. (2015). End milling of CF/PEEK under cryogenic conditions - Effects of liquefied carbon dioxide and liquefied nitrogen. In Proceedings of the 8th International Conference on Leading Edge Manufacturing in 21st Century, LEM 2015 Japan Society of Mechanical Engineers.