3D printing and additive manufacturing. 2024 Dec 16;11(6):1961-1970. doi: 10.1089/3dp.2023.0054 Q32.12025
Sensitivity Analysis of Directed Energy Deposition Simulation Results to Aluminum Material Properties
基于铝合金材料属性的定向能量沉积仿真结果敏感性分析 翻译改进
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DOI: 10.1089/3dp.2023.0054 PMID: 39734736
摘要 中英对照阅读
由于增材制造(AM)中每次实验运行的成本高昂,因此开发能够找到最佳加工参数的模拟方法变得至关重要。这些模拟的准确性取决于文献中记录的材料参数的准确性。报告的参数可能存在很大差异,导致不同的模拟结果。因此,有必要确定哪些参数是关键驱动参数。这将允许仅对关键参数进行实验测试,从而更快地获得更准确的模拟。
本文使用Plackett-Burman实验设计筛选出对基于激光的直接能量沉积(DED)AM工艺热数学模型结果影响最大的材料特性。研究发现,在880 K和922 K时的激光吸收差异以及在922 K时的热导率变化对描述熔池特性的响应变量范围有最大影响。而1491 K时的热导率和733 K时的比热容对结果的影响较小,其余因素对模拟中的熔池特性几乎没有影响。
关键词:3D打印;增材制造;增材制造工艺;软件。
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