TY - GEN
T1 - Density gradient materials by direct metal laser sintering
AU - Kang, Hyun Goo
AU - Osada, Toshiko
AU - Miura, Hideshi
PY - 2010
Y1 - 2010
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=75749126192&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=75749126192&partnerID=8YFLogxK
U2 - 10.4028/www.scientific.net/AMR.89-91.281
DO - 10.4028/www.scientific.net/AMR.89-91.281
M3 - Conference contribution
AN - SCOPUS:75749126192
SN - 0878492933
SN - 9780878492930
VL - 89-91
T3 - Advanced Materials Research
SP - 281
EP - 284
BT - THERMEC 2009 Supplement
T2 - 6th International Conference on Processing and Manufacturing of Advanced Materials - THERMEC'2009
Y2 - 25 August 2009 through 29 August 2009
ER -