Additive and Advanced Manufacturing, Inverse Problem Methodologies and Machine Learning and Data Science, Volume 4 - Proceedings of the 2023 Annual Conference & Exposition on Experimental and Applied Mechanics
Additive and Advanced Manufacturing, Inverse Problem Methodologies and Machine Learning and Data Science, Volume 4 - Proceedings of the 2023 Annual Conference & Exposition on Experimental and Applied Mechanics
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增材和先进制造、反问题方法论以及机器学习和数据科学，第 4 卷 - 2023 年年会论文集
DOI：
10.1007/978-3-031-50474-7_3
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发表时间：
2024
期刊：
影响因子：
--
通讯作者：
Patterson E
中科院分区：
文献类型：
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作者：
Patterson E
增材制造是一种用于相对快速且便宜地生产复杂几何形状工程部件的技术;然而，在制造期间在部件中引起的残余应力可能导致构造的显著变形。在这项研究中，镍铬合金（Inconel 625）的几何增强薄板已被添加制造使用激光粉末床融合，具有可比的平面度，那些建立减。利用立体数字图像相关法测量薄板的离面位移，推导出薄板在加工过程中产生的残余应力。结果表明，残余应力可能会导致严重的平面外位移，这可以通过在构建过程中使用扶壁支撑来加强板边缘来缓解。在横向和纵向构建中，从胫骨托释放时平面外位移增加，但通过增量释放减少。
Additive manufacturing is a technique for producing complex geometry engineering parts relatively quickly and cheaply; however, residual stresses induced in the part during manufacture can result in significant distortion of the build. In this study, nickel-chromium alloy (Inconel 625) geometrically-reinforced thin plates have been additively manufactured using laser-powder bed fusion, that have comparable flatness to those built subtractively. The residual stresses induced in the thin plates from manufacture are deduced by measuring out-of-plane displacements using stereoscopic digital image correlation. The results demonstrate that residual stresses cause potentially severe out-of-plane displacements which can be alleviated by using buttress supports to reinforce the plate edges during the build. In both landscape and portrait orientation builds, out-of-plane displacement increased upon release from the baseplate but was reduced by incremental release.