3D modeling and testing of transient temperature in selective laser sintering (SLS) process

被引：20

作者：

Xing, Jian ^{[1
,2
]}

Sun, Weimin ^{[1
]}

Rana, R. S. ^{[2
,3
]}

机构：

[1] Harbin Engn Univ, Dept Opt Informat Sci & Technol, Harbin 15001, Peoples R China

[2] Univ Roma Tor Vergata, Fac Engn, I-00133 Rome, Italy

[3] Ctr Higher Educ & Training, Singapore, Singapore

来源：

OPTIK | 2013年 / 124卷 / 04期

关键词：

3D modeling; SLS; Transient temperature; FEM; POWDER;

D O I：

10.1016/j.ijleo.2011.11.064

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

In the process of rapid prototyping by the method of selective laser sintering (SLS), transient temperature has direct effect upon the sintering performance. In the present work, a model is developed in order to generate 3D transient temperature field. It uses Al2O3 coated ceramic powder and involves the finite element method (FEM) variation of thermal properties and solid-liquid two-phase interface. A highspeed charge coupled device (CCD) image temperature measurement system is used to generate for testing. The obtained test results validates the simulation data and implies that the proposed modeling method is useful in simulating the transient sintering temperature specially when the correct thermal properties and key factors of two-phase interface are main concerns. The performance characteristics of the reasonable sintering parameters are predicted by the proposed modeling method. (C) 2011 Elsevier GmbH. All rights reserved.

引用

页码：301 / 304

页数：4

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