Non-destructive testing of landing gear parts made by additive manufacturing

增材制造起落架零件的无损检测

• 批准号: 549491-2019
• 负责人: Désilets, Pascal
• 金额: $ 5.46万
• 依托单位: Cégep Edouard-Montpetit
• 依托单位国家: 加拿大
• 项目类别: Applied Research and Development Grants - Level 2
• 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=699813
• 关键词: Non; destructive; testing; landing; gear

In the aerospace industry, additive manufacturing (AM) is increasingly adopted for the production of critical parts as it allows for considerable gains in terms of weight, cost and engineering performance. However, its expansion is slowed down by the limited confidence in the process repeatability which is strongly linked to the lack of efficient non-destructive testing (NDT) to assess the quality of manufactured parts. NDT techniques need to be developed and optimized to address the challenging specificities of AM parts such as surface roughness, porosity, anisotropy and geometric complexities rendered possible by the process. The objective of this project, in partnership with Collins Aerospace, is to contribute to the development of advanced NDT techniques for the inspection of Ti-6Al-4V Titanium alloy landing gear parts obtained by powder bed fusion (PBF) and wire arc melting (WAM). Innovative ultrasound techniques will be developed and adapted to three families of parts defined by their geometric complexity. The developed techniques will then be validated on reference parts with simulated defects. The validated techniques will then lead to guidelines for inspection procedures for each family of parts.

在航空航天工业中，增材制造（AM）越来越多地用于关键零件的生产，因为它可以在重量、成本和工程性能方面获得可观的收益。然而，由于对工艺可重复性的信心有限，其扩张速度放缓，这与缺乏有效的无损检测（NDT）来评估制造零件的质量密切相关。NDT技术需要开发和优化，以解决AM部件的挑战性特性，如表面粗糙度，孔隙率，各向异性和几何复杂性，使该过程成为可能。该项目的目标是与柯林斯宇航公司合作，为先进的无损检测技术的发展做出贡献，该技术用于通过粉末床熔融（PBF）和电弧熔炼（WAM）获得的Ti-6Al-4V钛合金起落架零件的检测。创新的超声技术将被开发和适应三个家庭的部分定义其几何复杂性。开发的技术将在具有模拟缺陷的参考部件上进行验证。然后，经确认的技术将为每个部件系列的检查程序提供指导。