Dataset of in-situ coaxial observations and print’s cross-section images using Direct Energy Deposition fabrication.

Co-axial monitoring of the Direct Energy Deposition (DED) machine’s process allows a real-time material deposition study. Co-axial images, not only contain substantial melt pool information but also incorporate situational information like the number of sparks, the sparks’ intensity, etc. In recent studies, it has been shown that melt pool observations are correlated directly with the machine parameters and artifact’s properties. Therefore, having the melt pool information, not only can assist in measuring the machine’s working condition and determining machine operation parameters’ reliability, but also facilitates the deposition characteristics studies such as print’s regime and dimensions. This information is gathered meanwhile the fabrication is ongoing and can further be expended to perform various process studies and fault registration. In this paper, an Optomec DED machine is utilized to fabricate single-track line prints with various process parameters while a co-axial camera records the deposition. Each deposited track is then cut perpendicular to the print direction to facilitate process parameters correlation study with actual geometrical deposition measured using a microscope. The co-axial Images taken during the fabrication, along with their corresponding process parameters and cross-cut measurements and developed image processing toolbox are gathered and shared alongside this paper to empower future research directions.

对直接能量沉积（Direct Energy Deposition，DED）设备的加工过程开展同轴监测，可实现实时材料沉积研究。所采集的同轴图像不仅包含大量熔池（melt pool）信息，还涵盖了火花数量、火花强度等工况相关信息。已有近期研究表明，熔池观测结果与机床参数及工件性能直接相关。因此，获取熔池信息不仅有助于评估机床运行状态、验证加工参数的可靠性，还能助力沉积特性研究，例如打印工况及沉积尺寸等方向。此类信息在加工过程中同步采集，还可进一步拓展应用于各类加工过程研究与故障记录工作。本文采用Optomec DED设备，基于多种加工参数制备单道线迹打印试样，同时通过同轴相机记录沉积过程。随后将每一道沉积轨迹沿垂直于打印方向切割，以便结合显微镜测得的实际沉积几何尺寸，开展加工参数与沉积特性的相关性研究。本文同步整理并公开了加工过程中采集的同轴图像、对应的加工参数、横截面测量数据，以及自研的图像处理工具箱，旨在为后续相关研究提供支撑。

搜集汇总

背景与挑战

背景概述

该数据集包含使用直接能量沉积（DED）制造技术生成的同轴观测图像和打印横截面图像，旨在通过实时熔池信息研究工艺参数与沉积特性之间的相关性。数据集提供了单轨线打印的同轴图像、对应工艺参数、横截面测量结果及图像处理工具箱，支持机器状态评估、故障记录和沉积特性研究，适用于增材制造过程优化和质量控制领域。