3D FE simulation for temperature evolution in the selective laser sintering process
3D FE simulation for temperature evolution in the selective laser sintering process
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DOI：
10.1016/j.ijmachtools.2003.10.019
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发表时间：
2004-02-01
影响因子：
14
通讯作者：
Locher, M
中科院分区：
文献类型：
--
作者：
Kolossov, S;Boillat, E;Locher, M
建立了选择性激光烧结（SLS）的热模型。该模型考虑了由于温度变化和相变引起的热导率和比热的非线性行为。采用基于连续介质理论的三维有限元分析方法，模拟了烧结件的温度演化和成形过程。结果表明，烧结效应通过改变材料的热性能对热演化有很大影响。模型的结果进行了实验测试，并通过温度测量证实。(C)2003 Elsevier Ltd.保留所有权利。
A thermal model of selective laser sintering (SLS) has been developed. The model allows for the non-linear behavior of thermal conductivity and of specific heat due to temperature changes and phase transformations. The temperature evolution and the formation of the sintered part are simulated by a 3D finite element analysis based on continuous media theory. It is shown that the effect of sintering has a strong influence on thermal evolution through changing the thermal properties of the material. The results of the model were experimentally tested and confirmed by temperature measurements. (C) 2003 Elsevier Ltd. All rights reserved.