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Analysis of Axisymmetric Cup Forming of Metal Foil and Micro Hydroforming Process

[+] Author Affiliations
Hideki Sato, Ken-ichi Manabe

Tokyo Metropolitan University, Tokyo, Japan

Dongbin Wei

University of Technology, Sydney, NSW, Australia

Zhengyi Jiang

University of Wollongong, Wollongong, NSW, Australia

Paper No. IMECE2013-64355, pp. V010T11A040; 7 pages
doi:10.1115/IMECE2013-64355
From:
  • ASME 2013 International Mechanical Engineering Congress and Exposition
  • Volume 10: Micro- and Nano-Systems Engineering and Packaging
  • San Diego, California, USA, November 15–21, 2013
  • Conference Sponsors: ASME
  • ISBN: 978-0-7918-5639-0
  • Copyright © 2013 by ASME

abstract

A novel forming method “micro hydromechanical deep drawing (MHDD)” is focused to improve the tribological property and forming limit. In this study, a theoretical model for MHDD is developed to investigate the size effect on deformation behavior in micro hydromechanical deep drawing. The effects of fluid pressure, the difference of friction coefficients at inner pockets and outer pockets are considered in the investigation on the size effect of tribological property. The friction force decreases as the scale factor decreases in MHDD process. It is also found that the tribological property in micro scale can be improved by applying the fluid pressure. The forming limit decreases as the relative punch diameter increases. However, it is clarified that the forming limit can be improved by decreasing the friction force in MHDD.

Copyright © 2013 by ASME

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