Paper Title:
Density Gradient Materials by Direct Metal Laser Sintering
  Abstract

The direct metal laser sintering process was applied to produce density gradient materials of stainless steel 316L. In order to understand the mechanism of forming porous structure, the influence of laser power, scan rate and scan pitch on the porosity were investigated by measuring density of produced samples and observing cross-sectional microstructures. Laser power greatly affected to the porosity by forming clusters of melted metal powders. It was found that the size change of clusters plays a role in forming porous structure. Eventually, three dimensional sample owing density gradient structures was manufactured.

  Info
Periodical
Advanced Materials Research (Volumes 89-91)
Edited by
T. Chandra, N. Wanderka, W. Reimers , M. Ionescu
Pages
281-284
DOI
10.4028/www.scientific.net/AMR.89-91.281
Citation
H. G. Kang, T. Osada, H. Miura, "Density Gradient Materials by Direct Metal Laser Sintering ", Advanced Materials Research, Vols. 89-91, pp. 281-284, 2010
Online since
January 2010
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Price
$32.00
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