Test artifacts have been used to evaluate additive manufacturing (AM) systems since the early 1990s with over 65 artifacts published to date. Due to the system agnostic approach to artifact design, principally focused on geometric accuracy, there has yet to be a widely adopted artifact for laser powder bed fusion (LPBF). To speed qualification of LPBF, a rapid method that quantifies impacts of process variables on part structure, properties, and performance is required. Using a list of design requirements developed from literature, build experience, and needs from several major roadmapping efforts, a test artifact was designed to evaluate geometry-specific microstructure, dimensional accuracy, residual stress, chemistry, surface integrity, powder removal, and distortion. The LPBF artifact includes: four sides for geometric feature accuracy and surface integrity analysis, indication marks for accurate sectioning for metallography, and additional features specifically designed to evaluate residual stress, powder removal, mechanical properties and distortion. The artifact is compact and designed to fit within a standard 50 mm metallographic mount with indication marks used to improve measurement repeatability and accuracy. Microstructure and anomaly population are quantifiable on features including overhangs, islands, thin features, channels, lattice structures and bulk areas representing different thermal histories. It is believed that this single test artifact can be used for many purposes, including optimization of LPBF input variables, qualification and more. Ongoing work is continuing to improve the artifact design, testing its implementation across LPBF platforms, and using the artifact to concretely define process sensitivity currently limiting standardization and adoption of LPBF due to costs associated with defining process windows in terms of qualification and certification. As part of this effort, the artifact described here forms the basis of the Global Test Artifact Data Exchange Program – a program designed and managed by the authors for the benefit of research to advance LPBF qualification efforts and help lead to more widespread adoption of LPBF (described in more detail at keck.utep.edu/GTADExP).

自1990年代初以来，测试工件已用于评估增材制造（AM）系统，迄今为止已发布了65多个工件。由于伪影设计的系统不可知方法（主要集中在几何精度上），激光粉末床融合（LPBF）尚没有被广泛采用的伪影。为了加快LPBF的鉴定速度，需要一种快速的方法来量化工艺变量对零件结构，特性和性能的影响。使用从文献中得出的设计要求，构建经验以及几项主要路线图工作中的需求清单，设计了测试工件，以评估特定于几何形状的微观结构，尺寸精度，残余应力，化学性质，表面完整性，粉末去除和变形。LPBF工件包括：四个侧面用于几何特征精度和表面完整性分析，指示标记用于金相学的精确切片，另外还专门设计用于评估残余应力，粉末去除，机械性能和变形的特征。该工件非常紧凑，设计为可放入标准的50 mm金相安装座中，并带有指示标记，以提高测量的可重复性和准确性。微观结构和异常人口是可以量化的特征，包括代表不同热历史的悬垂，孤岛，稀薄特征，通道，晶格结构和块状区域。可以相信，该单个测试工件可以用于许多目的，包括LPBF输入变量的优化，限定等。正在进行的工作正在继续改进工件设计，在LPBF平台上测试其实现，并使用工件具体定义流程敏感性，由于与在资格和认证方面定义流程窗口相关的成本，当前限制了LPBF的标准化和采用。作为这项工作的一部分，此处介绍的工件构成了“全球测试工件数据交换计划”的基础，该程序由作者设计和管理，目的是研究以促进LPBF认证工作并有助于更广泛地采用LPBF（有关详细信息，请访问keck.utep.edu/GTADExP）。