This paper reports a novel solid freeform fabrication process, Nanoparticle Additive Manufacturing (NAM), for dispersing nanoparticles into molten matrix for improved mechanical properties. In addition, it also presents the characterization of microstructure and hardness of the fabricated Ni-nanoparticles dispersed H13 steel gear-shaped molds.

Issue Section:
Technical Briefs
Keywords:
nickel, nanoparticles, steel, disperse systems, crystal microstructure, hardness, injection moulding, nanotechnology
Topics:
Additive manufacturing, Nanoparticles, Steel, Lasers, Gears
1.
Koch, C. C., 2002, Nanostructured Materials: Processing, Properties, and Potential Applications, Noyes Publications, New York.
2.
Goldstein, A. N., 1997, Handbook of Nanophase Materials, Marcel Dekker, Inc., NY.
3.
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.
4.
Manthiram
,
A.
,
Bourell
,
D. L.
, and
Marcus
,
H. L.
,
1993
, “
Nanophase Materials in Solid Freeform Fabrication
,”
J. Met.
,
45
, pp.
66
–
70
.
5.
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
.
6.
Mazumder, J., Schifferer, A., and Choi, J., 1999, “Direct Materials Deposition: Designed Macro and Microstructure,” Mat. Res. Soc. Symp. Proc., 542, pp. 51–63.
7.
Budinski, K. G., 1996, Engineering Materials: Properties and Selection, Prentice Hall Inc., NJ 07632.
8.
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.
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 by ASME
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