Experimental study about polystyrene powder based on selective laser sintering

YANG Laixia; LIU Xu

doi:10.7510/jgjs.issn.1001-3806.2016.05.031

In order to explore effects of process parameters of selective laser sintering on polystyrene powder and improve the strength and accuracy of polystyrene (PS) powder by the improved process parameters, thermal gravity/differential scanning calorimetry analysis was made to study thermal properties of PS powder. Sintering experiment of powder was carried out by SLS300 rapid molding machine. After theoretical analysis and experimental verification, the samples had high precision when sintering temperature was between 150℃ and 260℃. The results show that the effects of process parameters on dimensional precision of x axis and y axis are small, the effect on dimensional precision of z axis is great. Bending strength decreases with the increase of laser power, scanning interval and layer thickness. The study provides experimental basis to improve sintering quality of PS by the optimization of process parameters.

Experimental study about polystyrene powder based on selective laser sintering

1. College of Mechanical Engineering, Xi'an University of Science and Technology, Xi'an 710054, China

Received Date: 2015-06-02

Accepted Date: 2015-06-30

Available Online: 2016-09-25

Abstract: In order to explore effects of process parameters of selective laser sintering on polystyrene powder and improve the strength and accuracy of polystyrene (PS) powder by the improved process parameters, thermal gravity/differential scanning calorimetry analysis was made to study thermal properties of PS powder. Sintering experiment of powder was carried out by SLS300 rapid molding machine. After theoretical analysis and experimental verification, the samples had high precision when sintering temperature was between 150℃ and 260℃. The results show that the effects of process parameters on dimensional precision of x axis and y axis are small, the effect on dimensional precision of z axis is great. Bending strength decreases with the increase of laser power, scanning interval and layer thickness. The study provides experimental basis to improve sintering quality of PS by the optimization of process parameters.

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Reference (15)

[1]	SHI Y Sh,LIU J H,YAN Ch Z,et al.Powder material selective laser rapid prototyping technology and its application[M].Beijing:Science Press,2012:37-39(in Chinese).
[2]	SUN Sh W,ZHANG J,ZHENG H Zh.The precision research of PS parts based on SLS[J].Modern Plastics Processing and Applications,2007,19(1):26-28(in Chinese).
[3]	DU Y Y,SHI Y Sh,WEI Q S.Technology and simulation of cold isostatic pressing of selective laser sintered parts[J].Laser Technology,2014,38(1):96-100(in Chinese).
[4]	LI D Ch,TIAN X Y,WANG Y X,et al.Development of additive manufacturing technology[J].ElectromachiningMould,2012,32(s1):20-22(in Chinese).
[5]	DONG Q,WANG Ch Y,QIAN Q B.The research of the influential factors on polystyrene parts size accuracy base on Selective laser sintering[J].Plastics Industry,2010,38(4):93-95(in Chinese).
[6]	YANG L X,HONG H X,YAO X S,et al.Experimental study on sucrose of selective laser sintering[J].Laser Technology,2015,39(1):114-118(in Chinese).
[7]	YAO X Sh.Study on the laser sintering process of carbohydrate-based material[D].Xi'an:Xi'an University of Science and Technology,2014:17-20(in Chinese).
[8]	REN N F,LUO Y,XU M L.Effect of laser energy density on the dimension12/HDPE product[J].Laser Technology,2010,34(4):561-564(in Chinese).
[9]	XIE X L,XIAO H P.The research of reduce sintering shrinkage on polystyrene powder[J].Journal of Nanchang Institute of Aviation Industry (Natural Science Edition),2004,18(3):69-71(in Chinese).
[10]	ZHANG J,XU Zh F,ZHENG H Zh,et al.Study on the selective laser sintering process of polystyrene/Al2O3 nano-composites[J].Mechanical Science and Technology,2006,25(1):15-17(in Chinese).
[11]	DECKERS J,SHAHZAD K,VLEUGELS J,et al.Isostatic pressing assisted indirect selective laser sintering of alumia components[J].Rapid Prototyping Journal,2012,18(5):409-419.
[12]	RATNDEEP P,SAM A.Process energy analysis and optimization in selective laser sintering[J].Journal of Manufacturing Systems,2012,31(4):429-437.
[13]	WANG Ch Y,CHEN Y.The coupling research of selective laser sintering polystyrene'process parameters[J].Applied Laser,2014,34(4):305-309(in Chinese).
[14]	YAN C Z,SHI Y S,YANG J S,et al.Preparation and selective laser sintering of nylon-coated metal powder for the indirect SLS process[J].Rapid Prototyping Journal,2009,15(5):355-360.
[15]	ZHU P L,XU Zh F,YU H,et al. Effects of process parameters on the forming of coated sand by selective laser sintering[J].Journal of Nanchang Hangkong University (Natural Sciences Edition),2012,26(1):104-108(in Chinese).

Experimental study about polystyrene powder based on selective laser sintering

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