Browse > Article
http://dx.doi.org/10.5228/KSTP.2011.20.2.118

Characterization of Direct Laser Melting Technology for the Fabrication of Fuel Cell Bipolar Plate  

Mun, S.M. (부산대학교 기계공학부/정밀정형 및 금형가공 연구소)
Jang, J.H. (부산대학교 기계공학부/정밀정형 및 금형가공 연구소)
Kim, T.H. (부산대학교 기계공학부/정밀정형 및 금형가공 연구소)
Lee, H.J. (부산대학교 기계공학부/정밀정형 및 금형가공 연구소)
Moon, Y.H. (부산대학교)
Publication Information
Transactions of Materials Processing / v.20, no.2, 2011 , pp. 118-123 More about this Journal
Abstract
Manufacturing of the bipolar plate of a direct methanol fuel cell (DMFC) by direct laser melting technology (DLM) was attempted. The DLM technology is highly influenced by process parameters such as laser power, scan rate and layering height. Therefore, an analysis of the DLM technology was performed under various conditions. The bipolar plates were fabricated using the DLM process with 316L stainless steel (STS 316L) plates and powder. Powder melting trials at various energy density were performed in order to select a feasible melting range for a given laser power. The melting line height increases and eventually saturates when the energy density increases, but decreases when the laser power increases at a given energy density. For the estimation of the potential performance of the bipolar plate, the surface roughness and contact resistance of the DLM layer were also analyzed. The changes of line height and thickness are useful information to report when manufacturing bipolar plate of fuel cell through the DLM process.
Keywords
Direct Laser Melting; Fiber Laser; Laser Parameter; Bipolar Plate; 316L Stainless Steel Powder;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
1 U. S. Department of Energy, Office of Fossil Energy, National Energy Technology Laboratory, 2004, Fuel Cell Hand Book (Seventh edition), EG&G Technical Services. Inc.
2 J. P. Chio, K. S. Kim, Y. H. Seo, B. S. Ku, J. H. Jang, B. H. Kim, 2008, Development of Synthetic Jet Micro Air Pump, Trans. Metal. Process., Vol. 17, No. 8, pp. 594-599.   과학기술학회마을   DOI
3 B. R. Padhy, R. G. Reddy, 2006, Performance of DMFC with SS 316 bipolar/end plates, J. Power Sources, Vol.153, No.1, pp. 125-129.   DOI
4 B. Vandenbrouche, J. P. Kruth, 2007, Selective laser melting of biocompatible metals for rapid manufacturing of medical parts, J. Rapid Prototyping, Vol.13/4, pp. 196-203.
5 K. A. Mumtaz, P. Erasenthiran, N. Hopkinson, 2008, High density selective laser melting of Waspaloy, J. Mater. Process. Technol., Vol. 195, pp. 77-87.   DOI
6 B. D. Joo, J. H. Jang, H. S. Yim, Y. M. Son, Y. H. Moon, 2009, Effect of Process Parameters on Forming Characteristics of Selective Laser Sintered Fe-Ni-Cr Powder, Trans. Metal. Process., Vol. 18, No.3, pp. 262-267.   과학기술학회마을   DOI
7 I. Yadroitsev, Ph. Bertrand, I. Smurov, 2007, Parametric analysis of the selective laser melting process, Appl. Surf. Sci., Vol. 253, pp. 8064-8069.   DOI
8 D. Suman, 2003, Physical aspects of process control in selective laser sintering of metals, Adv. Eng. Mater, Vol. 5, No.10, pp. 701-711.   DOI
9 A. Simuchi, F. Petzoldt, H. Pohl, 2001, Direct Metal Laser Sintering: Material Considerations and Mechanisms of Particle Bonding, Int. J. Powder Metall., Vol. 37, No. 2, pp. 49-61.