Fabrication of PEMFC metallic bipolar plates with micro-channel arrays using stamping and hydroforming processes

S. Mahabunphachai, Muammer Koç

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

1 Citation (Scopus)

Abstract

Stack cost is one of the major barriers for commercialization of fuel cells into the market. In this study, investigations were conducted on the formability and dimensional capability of metallic bipolar plates using both stamping and hydroforming processes considering. Several thin metal sheet alloys (SS304, SS316L, SS430, Ni270, Ti grade 1 and 2 with initial sheet thickness of 0.051 mm) were used in the experiments. Stamping and hydroforming tests were performed using the same die that had 0.75 x 0.75mm micro-channel arrays. The test results showed the feasibility and process capability of both methods in producing micro-channel arrays. However, hydroforming was found to provide better dimensional accuracy on bipolar plate micro-channels when compared to the stamping process. In addition, the effect of the stamping speed (0.1 and 1mm/s) and the hydroforming pressure rate (0.1, 1, and 10MPa/s) was found to be insignificant on the formability of the micro-channels, especially at a higher force or pressure levels. Finally, SS304 and SS316L were shown to possess better formability when compared to the other alloys. SS430 and Ti grade 2 demonstrated the worst formability among all.

Original languageEnglish
Title of host publicationInternational Conferences on Multi-Material Micro Manufacture, 4M/International Conferences on Micro Manufacturing, ICOMM
Pages123-126
Number of pages4
DOIs
Publication statusPublished - 2009
Externally publishedYes
EventInternational Conferences on Multi-Material Micro Manufacture, 4M/International Conferences on Micro Manufacturing, ICOMM - Karlsruhe, Germany
Duration: 23 Sep 200925 Sep 2009

Other

OtherInternational Conferences on Multi-Material Micro Manufacture, 4M/International Conferences on Micro Manufacturing, ICOMM
CountryGermany
CityKarlsruhe
Period23/9/0925/9/09

Fingerprint

Stamping
Proton exchange membrane fuel cells (PEMFC)
Formability
Fabrication
Sheet metal
Fuel cells
Costs
Experiments

Keywords

  • Metallic bipolar plate
  • Microforming
  • PEMFC
  • Sheet metal forming

ASJC Scopus subject areas

  • Industrial and Manufacturing Engineering
  • Materials Science(all)

Cite this

Mahabunphachai, S., & Koç, M. (2009). Fabrication of PEMFC metallic bipolar plates with micro-channel arrays using stamping and hydroforming processes. In International Conferences on Multi-Material Micro Manufacture, 4M/International Conferences on Micro Manufacturing, ICOMM (pp. 123-126) https://doi.org/10.1243/17547164C0012009019

Fabrication of PEMFC metallic bipolar plates with micro-channel arrays using stamping and hydroforming processes. / Mahabunphachai, S.; Koç, Muammer.

International Conferences on Multi-Material Micro Manufacture, 4M/International Conferences on Micro Manufacturing, ICOMM. 2009. p. 123-126.

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

Mahabunphachai, S & Koç, M 2009, Fabrication of PEMFC metallic bipolar plates with micro-channel arrays using stamping and hydroforming processes. in International Conferences on Multi-Material Micro Manufacture, 4M/International Conferences on Micro Manufacturing, ICOMM. pp. 123-126, International Conferences on Multi-Material Micro Manufacture, 4M/International Conferences on Micro Manufacturing, ICOMM, Karlsruhe, Germany, 23/9/09. https://doi.org/10.1243/17547164C0012009019
Mahabunphachai S, Koç M. Fabrication of PEMFC metallic bipolar plates with micro-channel arrays using stamping and hydroforming processes. In International Conferences on Multi-Material Micro Manufacture, 4M/International Conferences on Micro Manufacturing, ICOMM. 2009. p. 123-126 https://doi.org/10.1243/17547164C0012009019
Mahabunphachai, S. ; Koç, Muammer. / Fabrication of PEMFC metallic bipolar plates with micro-channel arrays using stamping and hydroforming processes. International Conferences on Multi-Material Micro Manufacture, 4M/International Conferences on Micro Manufacturing, ICOMM. 2009. pp. 123-126
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