论文标题
对定向能量沉积（DED）过程和潜在解决方案中异常的综述
A Review of the Anomalies in Directed Energy Deposition (DED) Processes and Potential Solutions
论文作者
论文摘要
定向的能量沉积（DED）过程提供了最通用的当前技术之一，可在具有一般设计的复杂几何形状并具有组成控制的合并金属组件上生产和维修金属组件。与粉末床融合（PBF）相比，其适用性和采用受到限制，因为该过程的一些先天问题尚未得到适当的理解和解决。这项工作基于最先进的文献综述，在DED过程中及其原因和解决方案的这些问题和异常情况分类和描述。这项工作还列举并将基本原因与有害影响相关联，这表现为不良的部分/过程结果。这些特定特定的异常被分类在与零件，过程，材料，生产力，安全性，修复和功能梯度相关的组下。总的来说，该底漆是最佳准备和减轻DED中遇到的问题的指南，并为激发新的解决方案奠定基础，以进一步发展DED进入主流制造业。
Directed Energy Deposition (DED) processes offer one of the most versatile current techniques to additively manufacture and repair metallic components that have generatively designed complex geometries, and with compositional control. When compared to powder bed fusion (PBF), its applicability and adoption has been limited because several issues innate to the process are yet to be suitably understood and resolved. This work catalogs and delineates these issues and anomalies in the DED process along with their causes and solutions, based on a state-of-the-art literature review. This work also serves to enumerate and associate the underlying causes to the detrimental effects which manifest as undesirable part/process outcomes. These DED-specific anomalies are categorized under groups related to the part, process, material, productivity, safety, repair, and functional gradients. Altogether, this primer acts as a guide to best prepare for and mitigate the problems that are encountered in DED, and also to lay the groundwork to inspire novel solutions to further advance DED into mainstream manufacturing.
