Online citations, reference lists, and bibliographies.

Melting Process And Mechanics On Laser Sintering Of Single Layer Polyamide 6 Powder

W. Zhou, X. Wang, Jiangbo Hu, Xuelin Zhu
Published 2013 · Engineering

Cite This
Download PDF
Analyze on Scholarcy
Share
In this paper, polyamide 6 single layer laser sintering process was investigated. A moving volumetric heat source model that involves the energy function morphology was simulated, and the temperature field distribution of a single layer of polyamide 6 powder was investigated using the finite element method, with different scan space and preheating temperature. The sintering processes were conducted on several batch of single layer with original thickness of 0.5 mm, which consists of 80 mesh polyamide 6 powders. Then the percentage of porosity was calculated and tensile stress of was tested. The results indicate that the scanning space strongly affect the percentage of porosity. For example, the percentage of porosity reaches 45.1 % when the scanning space increases from 0.25 to 0.45 mm. The results also indicate that the preheating and holding temperature strongly affect the mechanical properties. For example, the max tensile test stress increased from 2.04 to 4.10 MPa when the temperature rises from 50 to 150 °C, while the percentage of porosity shows very limited shift, reducing by only 9.54 %.
This paper references
10.1016/J.IJPLAS.2007.09.003
Modelling effects of degree of crystallinity on mechanical behavior of semicrystalline polymers
N. Dusunceli (2008)
10.1002/aic.690030317
Studies on effective thermal conductivities in packed beds
S. Yagi (1957)
10.1007/S00170-012-4155-7
Parametric investigation of temperature distribution in field activated sintering apparatus
Serrano Muñoz (2013)
10.1016/J.POLYMERTESTING.2011.12.006
Mechanical properties of PA6/PA12 blend specimens prepared by selective laser sintering
G. Salmoria (2012)
10.1002/PEN.11300
Nature of contact between polymer and mold in injection molding. Part I: Influence of a non‐perfect thermal contact
D. Delaunay (2000)
10.1016/J.JMATPROTEC.2010.09.003
Densification mechanism and microstructural evolution in selective laser sintering of Al-12Si powders
E. O. Olakanmi (2011)
10.1016/J.IJHEATMASSTRANSFER.2002.04.001
Heat transfer with mechanically driven thermal contact resistance at the polymer–mold interface in injection molding of polymers
H. Massé (2004)
10.1007/S00170-010-2681-8
Investigation into the selective laser sintering of styrene–acrylonitrile copolymer and postprocessing
C. Yan (2010)
10.1007/S00170-011-3538-5
Microstructural characterization and mechanical properties of functionally graded PA12/HDPE parts by selective laser sintering
Janaina Lisi Leite (2012)
10.1243/0954405011519330
Selective laser sintering of a crystalline and a glass-filled crystalline polymer: Experiments and simulations
T. Childs (2001)
10.1016/J.POLYMERTESTING.2009.12.006
Microstructural characterization of SLS-PA12 specimens under dynamic tension/compression excitation
B. V. Hooreweder (2010)
10.1016/J.JCLEPRO.2010.07.018
Experimental Analysis of Selective Laser Sintering of Polyamide Powders: an Energy Perspective
A. Franco (2010)
10.1016/J.COMMATSCI.2011.09.012
Simulation of temperature distribution in single metallic powder layer for laser micro-sintering
J. Yin (2012)



This paper is referenced by
10.1088/1757-899X/322/4/042007
Numerical Simulation of Marangoni flow field of Selective Laser Sintering of Polyamide 6 Powder
Jinzhe Wu (2018)
10.1088/2053-1591/AB2747
Molten pool behavior and its mechanism during selective laser melting of polyamide 6 powder: single track simulation and experiments
Jinzhe Wu (2019)
10.1016/J.POLYMERTESTING.2018.05.045
Investigation into the processability, recyclability and crystalline structure of selective laser sintered Polyamide 6 in comparison with Polyamide 12
Peng Chen (2018)
10.1007/S00170-015-7609-X
A finite element model of thermal evolution in laser micro sintering
Jie Yin (2016)
10.3390/polym10111208
Influence of Processing Parameters on Tensile Properties of SLS Polymer Product
Ana Pilipović (2018)
10.1016/J.MATDES.2016.10.028
Comparison of crystallization characteristics and mechanical properties of poly(butylene terephthalate) processed by laser sintering and injection molding
S. Arai (2017)
10.1007/S00170-018-3004-8
Experimental study on the variance of mechanical properties of polyamide 6 during multi-layer sintering process in selective laser sintering
Zhicheng Ling (2019)
10.1016/J.EURPOLYMJ.2015.12.014
Characterization of polyamide powders for determination of laser sintering processability
L. Verbelen (2016)
10.1007/S41230-017-7143-6
Temperature field simulations during selective laser melting process based on fully threaded tree
Wei Duan (2017)
10.1557/jmr.2019.161
Development of new polyimide powder for selective laser sintering
Gleb V Vaganov (2019)
Semantic Scholar Logo Some data provided by SemanticScholar