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计算框架来建模选择性激光烧结过程

João Castro¹, João Miguel Nóbrega¹, Ricardo Costa¹

¹Institute for Polymers and Composites, University of Minho, Campus de Azurém, 4800-058 Guimarães, Portugal.

Materials (Basel, Switzerland)

|April 27, 2024

概括

这项研究开发了一种开源计算模型,用于聚合物的选择性激光烧结 (SLS). 颗粒级模拟准确预测工艺结果,帮助优化复杂零件制造.

科学领域:

添加剂制造添加剂制造添加剂制造
计算材料科学计算材料科学
聚合物加工聚合物加工

背景情况:

选择性激光烧结 (SLS) 是一种关键的增材制造 (AM) 技术,因其复杂的几何形状和机械性能而受到重视.
SLS的多物理复杂性阻碍了工业采用,需要先进的模拟方法.
传统的实验优化是昂贵和耗时的,推动了对计算方法的需求.

研究的目的:

开发一个开源的粒子长度尺度计算模型,用于模拟聚合物应用中的SLS过程.
评估关键过程参数对SLS结果的影响.
为详细调查和优化SLS提供一个工具.

主要方法:

在粒子长度尺度上模拟选择性激光烧结 (SLS) 的计算模型的开发.
实行处女和使用过的聚合物颗粒,具有不同的粘度,以模仿真正的原料.
对模拟结果与现有实验数据的验证.

主要成果:

开发的计算模型成功模拟了聚合物SLS过程.
模拟结果与实验数据有很好的一致性.
该模型有效地代表了原料特性 (如粘度) 的影响.

结论:

经过验证的计算模型是理解和优化SLS流程的强大工具.
这种粒子级模拟方法有助于研究物理参数和材料特性.
开源框架促进了SLS技术的更广泛的研究和工业实施.

关键词:

开放式的泡这就是SLS.计算建模计算建模粒子尺度上的粒子尺度.聚合物是一种聚合物.

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