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http://dx.doi.org/10.7777/jkfs.2011.31.5.274

Fabrication Process and Forming Analysis of Fuel Cell Bipolar Plate by Injection Condition of Vacuum Die Casting  

Jin, Chul-Kyu (Department of Mechanical and Precision Engineering, Graduate School, Pusan National University)
Jang, Chang-Hyun (Department of Mechanical and Precision Engineering, Graduate School, Pusan National University)
Kim, Jae-Sung (CAST TECH Co., Ltd.)
Choi, Jae-Won (NSC Ind. Co., Ltd.)
Kang, Chung-Gil (Engineering Research Center for Net Shape and Die Manufacturing, Pusan National University)
Publication Information
Journal of Korea Foundry Society / v.31, no.5, 2011 , pp. 274-283 More about this Journal
Abstract
The vacuum die casting is a promising candidate of the stamping process for fabrication of fuel cell bipolar plate due to its advantages, such as precision casting, mass production and short production time. This study proposes vacuum die casting process to fabricate bipolar plates in fuel cell. Bipolar plates were fabricated under various injection conditions such as molten metal temperature and injection velocity. Also, according to injection velocity conditions, simulation results of MAGMA soft were compared to the experimental results. In case of melt temperature $650^{\circ}C$, misrun occurred. When the melt temperature was $730^{\circ}C$, mechanical properties were low due to dendrite microstructure. Injection velocity has to set at more than 2.0 m/s to fabricate the sound sample. When melt temperature, injection velocity (Fast shot), and vacuum pressure are $700^{\circ}C$, 2.5 m/s and 30 kPa respectively, sample had good formability and few casting defects. Simulation results are mostly in agreement with experimental results.
Keywords
Vacuum die casting; Injection condition; 3D casting simulation; Bipolar plate; Silafont-36 alloy;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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