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TECHNICAL BRIEFS

Nanoparticle Additive Manufacturing of Ni-H13 Steel Injection Molds

[+] Author and Article Information
Rajeev Nair, Wenping Jiang, Pal Molian

Mechanical Engineering Department, Iowa State University, Ames, IA 50011 e-mail: rxmadhav@iastate.edu

J. Manuf. Sci. Eng 126(3), 637-639 (Sep 07, 2004) (3 pages) doi:10.1115/1.1765143 History: Received December 01, 2002; Revised January 28, 2004; Online September 07, 2004
Copyright © 2004 by ASME
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References

Koch, C. C., 2002, Nanostructured Materials: Processing, Properties, and Potential Applications, Noyes Publications, New York.
Goldstein, A. N., 1997, Handbook of Nanophase Materials, Marcel Dekker, Inc., NY.
R&D Status and Trends in Nanoparticles, Nanostructured Materials, and Nanodevices in the U.S., Proceedings of the May 8-9, 1997 Workshop, http://itri.loyola.edu/nano/US.Review/toc.htm.
Manthiram,  A., Bourell,  D. L., and Marcus,  H. L., 1993, “Nanophase Materials in Solid Freeform Fabrication,” J. Met., 45, pp. 66–70.
Mazumder,  J., Choi,  J., Nagarathnam,  K., Koch,  J., and Hetzner,  D., 1997, “The Direct Metal deposition of H-13 Tool Steel for 3-D Components: Microstructure and Mechanical Properties,” J. Met., 49(5), pp. 55–60.
Mazumder, J., Schifferer, A., and Choi, J., 1999, “Direct Materials Deposition: Designed Macro and Microstructure,” Mat. Res. Soc. Symp. Proc., 542 , pp. 51–63.
Budinski, K. G., 1996, Engineering Materials: Properties and Selection, Prentice Hall Inc., NJ 07632.
Jiang, W., 2002, “Experimental and Analytical Studies of a CO2 Laser-based Flexible Fabrication Method for Dies and Molds,” Ph.D. thesis, Mechanical Engineering Department, Iowa State University, Ames, Iowa.

Figures

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Photograph of fabricated gear mold
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(a) Single-track clad, (b) Cell structure at the top layer, and (c) Columnar dendrites at the interface layer of the track.
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(a) SEM micrograph showing the nanoparticles, (b) EDAX spectrum of the black nanoparticle (solid line) Dotted line is the spectrum of overall alloy
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Grain structure of the mold
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Hardness for H13 and H13/Ni nano molds

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