Insights into Temperature Simulation and Validation of Fused Deposition Modeling Processes

IF 3.3 Q2 ENGINEERING, MANUFACTURING Journal of Manufacturing and Materials Processing Pub Date : 2023-10-24 DOI:10.3390/jmmp7060189
Tiago Santos, Miguel Belbut, João Amaral, Vitor Amaral, Nelson Ferreira, Nuno Alves, Paula Pascoal-Faria
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Abstract

In fused deposition modeling (FDM), the cooling history impacts the bonding between filaments and layers. The existence of thermal gradients can cause non-homogeneous properties and localized stress points that may affect the individual filaments, resulting in distortion and detachment. Thermal analysis can aid in understanding the manufacturing flaw, providing necessary tools for the optimization of the printing trajectory. The present work is intended to deepen understanding of the thermal phenomena occurring during the extrusion of polymeric materials, aiming at more efficient three-dimensional (3D) printing methods. A one-dimensional (1D) finite differential method was implemented using MATLAB to simulate the temperature evolution of an extruded filament, and the results were compared with two-dimensional (2D) COMSOL Multiphysics simulations, and experimentally validated using infrared thermography. Acrylonitrile–butadiene–styrene (ABS) was used as a test material. The energy dissipation includes forced convection and radiation heat losses to the surrounding medium.
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洞察温度模拟和验证熔融沉积建模过程
在熔融沉积建模(FDM)中,冷却过程会影响细丝和层之间的结合。热梯度的存在会导致非均匀性和局部应力点,从而影响单个细丝,导致变形和脱离。热分析有助于了解制造缺陷,为优化打印轨迹提供必要的工具。目前的工作旨在加深对聚合物材料挤压过程中发生的热现象的理解,旨在更有效的三维(3D)打印方法。利用MATLAB软件,采用一维有限差分方法对挤压长丝的温度演化进行了模拟,并与二维COMSOL Multiphysics模拟结果进行了对比,并用红外热像仪进行了实验验证。以丙烯腈-丁二烯-苯乙烯(ABS)为试验材料。能量耗散包括强制对流和对周围介质的辐射热损失。
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来源期刊
Journal of Manufacturing and Materials Processing
Journal of Manufacturing and Materials Processing Engineering-Industrial and Manufacturing Engineering
CiteScore
5.10
自引率
6.20%
发文量
129
审稿时长
11 weeks
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