Capability Assessment of X-Ray Computed Tomography for the Inspection of Metal Additive Manufactured Products

X 射线计算机断层扫描检测金属增材制造产品的能力评估

• 批准号: 549909-2020
• 负责人: Potter, Simon
• 金额: $ 1.82万
• 依托单位: Red River College of Applied Arts, Science and Technology
• 依托单位国家: 加拿大
• 项目类别: Applied Research and Development Grants - Level 1
• 财政年份: 2020
• 资助国家: 加拿大
• 起止时间: 2020-01-01 至 2021-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=701374
• 关键词: Capability; Assessment; Ray; Computed; Tomography

Precision ADM (PADM) Inc., based in Winnipeg, uses Additive Manufacturing (AM) technology to manufacture high-value components for the medical, aerospace, energy, and industrial sectors. PADM is the first private sector metals AM Company in the Manitoba region and has an established local and global presence in the field. Metal AM processes are considerably complex, and as such, components produced with this technology can suffer from some process-related defects. Defects such as porosity, cracks, and structural distortion are routinely found in the finished AM parts, thereby compromising the functional integrity of such components. Critical components, such as those used for aerospace and medical applications, usually require careful inspection in order to meet stringent safety requirements. PADM has adopted other inspection techniques including metallography and microscopy, for analyzing the AM products, and has sent samples hundreds of miles away for 2D X-Ray and other analysis. The acquisition of a new X-Ray Computed Tomography (X-Ray CT) Capability at Red River College (RRC) presents a unique opportunity for PADM to evaluate this technology for parts inspection. The X-Ray CT system will help in the comprehensive analysis of internal cavities, porosities, and dimension of parts with complex geometries. To obtain quality X-Ray CT scan that is required for high defect detectability and accurate dimensional analysis, capability assessment and best-practice guidelines for the system need to be established for metal AM products. PADM is collaborating with RRC's Technology Access Centre for Aerospace and Manufacturing (TACAM) to evaluate X-Ray CT, develop capability and establish guidelines for the inspection and qualification of AM parts. This will involve determining the minimum detectable defect size and dimensional accuracy for different AM materials, thicknesses, and geometry variations. Standard specimens of commonly used metallic AM materials will be produced by PADM, using their directed metal laser sintering (DMLS) AM systems, which

Precision ADM（PADM）Inc.，总部位于温尼伯，采用增材制造（AM）技术， 为医疗、航空航天、能源和工业部门制造高价值部件。PADM是 作为马尼托巴地区第一家私营金属AM公司， 在外地的存在。金属AM工艺相当复杂，并且因此，用金属AM工艺生产的部件是不可能的。 这种技术可能存在一些与工艺相关的缺陷。孔隙、裂纹和结构缺陷 通常在成品AM部件中发现变形，从而损害这种AM部件的功能完整性。 件.关键部件，例如用于航空航天和医疗应用的部件，通常需要 仔细检查以满足严格的安全要求。PADM已通过其他检查 技术，包括金相学和显微镜，用于分析AM产品，并已发送样品 进行二维X射线和其他分析。购买新的X射线计算机 红河学院（RRC）的断层扫描（X射线CT）能力为PADM提供了一个独特的机会， 评估该技术用于零件检测。X射线CT系统将有助于全面分析 复杂几何形状零件的内部空腔、孔隙度和尺寸。获得高质量的X射线CT扫描 这是高缺陷检测能力和精确尺寸分析、能力评估和 需要为金属增材制造产品建立该系统的最佳实践指南。 PADM正在与RRC的航空航天和制造技术访问中心（TACAM）合作， 评估X射线CT，发展能力，并建立AM检查和资格认证指南 零件.这将涉及确定最小可检测的缺陷尺寸和尺寸精度， AM材料、厚度和几何形状变化。常用金属AM标准试样 材料将由PADM使用其定向金属激光烧结（DMLS）AM系统生产，