Coaxial monitoring of the Direct Energy Deposition (DED) machines enables a real-time material deposition study. Coaxial-images contain substantial melt-pool information and incorporate situational information including the sparks’ intensity, numbers, etc. Recent studies have shown that melt-pool observations correlate directly with machine parameters and artifact properties. Therefore, 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 like print’s regime and dimensions. This information is gathered during the fabrication and can be expanded to perform various process studies and fault registration. This paper utilizes the Optomec DED machine to fabricate single-track prints with multiple process parameters, while a coaxial camera records the deposition. Each deposited track is then cut perpendicular to the print’s direction to facilitate process parameters correlation study with actual geometrical deposition measured using a microscope. The coaxial images taken during fabrication, along with their process parameters, cross-cut measurements, and a developed image-processing toolbox, are presented alongside this paper to empower future research directions.

直接能量沉积 (DED) 机器的同轴监控可实现实时材料沉积研究。同轴图像包含大量熔池信息，并包含火花强度、数量等情境信息。最近的研究表明，熔池观测与机器参数和工件特性直接相关。因此，熔池信息不仅可以帮助测量机器的工作状况和确定机器操作参数的可靠性，而且有利于打印状态和尺寸等沉积特性的研究。这些信息是在制造过程中收集的，并且可以扩展以执行各种工艺研究和故障登记。本文利用 Optomec DED 机器制造具有多个工艺参数的单轨打印件，同时同轴相机记录沉积过程。然后垂直于印刷方向切割每个沉积轨迹，以促进工艺参数与使用显微镜测量的实际几何沉积的相关性研究。制造过程中拍摄的同轴图像及其工艺参数、横切测量和开发的图像处理工具箱与本文一起提供，以支持未来的研究方向。