TY - GEN
T1 - Three-dimensional simulation of multiple line laser sintering of a two-component metal powder layer on top of sintered layers
AU - Cher, Tiebing
AU - Zhang, Yuwen
PY - 2005
Y1 - 2005
N2 - Multiple line laser scan sintering of a two-component metal powder layer on top of the sintered layers with a moving circular Gaussian laser beam is modeled numerically. The overlap between the adjacent scan lines to achieve enhanced bonding is taken into account. The binding between the newly sintered layer and existing sintered layers underneath through melting is also considered. The governing equation is formulated by a temperature-transforming model with partial shrinkage induced by melting considered. The liquid flow of the molten low melting point metal powders, which is driven by capillary and gravity forces, is formulated by Darcy's law. The effects of the dominant processing parameters, including the moving laser beam intensity, scanning speed and number of the existing sintered layers underneath, on the shape of the heat affected zone (HAZ) are investigated. A parametric study is performed and the best combination of the processing parameters is recommended.
AB - Multiple line laser scan sintering of a two-component metal powder layer on top of the sintered layers with a moving circular Gaussian laser beam is modeled numerically. The overlap between the adjacent scan lines to achieve enhanced bonding is taken into account. The binding between the newly sintered layer and existing sintered layers underneath through melting is also considered. The governing equation is formulated by a temperature-transforming model with partial shrinkage induced by melting considered. The liquid flow of the molten low melting point metal powders, which is driven by capillary and gravity forces, is formulated by Darcy's law. The effects of the dominant processing parameters, including the moving laser beam intensity, scanning speed and number of the existing sintered layers underneath, on the shape of the heat affected zone (HAZ) are investigated. A parametric study is performed and the best combination of the processing parameters is recommended.
UR - https://www.scopus.com/pages/publications/33645676904
U2 - 10.1115/IMECE2005-82591
DO - 10.1115/IMECE2005-82591
M3 - 会议稿件
AN - SCOPUS:33645676904
SN - 0791842215
SN - 9780791842218
T3 - American Society of Mechanical Engineers, Heat Transfer Division, (Publication) HTD
SP - 1015
EP - 1023
BT - Proceedings of the ASME Heat Transfer Division 2005
T2 - 2005 ASME International Mechanical Engineering Congress and Exposition, IMECE 2005
Y2 - 5 November 2005 through 11 November 2005
ER -