Laser Powder Bed Additive Manufacturing Titanium 5553 Development

本项目旨在将钛-5553激光粉床熔化(LPBF)技术应用于起落架系统。LPBF是一类添加剂制造(AM)，为航空航天、模具和汽车等各种行业提供了巨大的机会。鉴于LPBF提供的机会，以及部署这项技术对于制造重量更轻、承载能力更好的航空零部件的重要性，滑铁卢大学和加拿大赛峰着陆系统公司于2018年初启动了一项初步研究，以调查LPBF钛-5553息票样品用于物理性能测量的可行性。鉴于试点研究取得了可喜的结果，该合作项目旨在解决几个剩余的挑战，包括通过筛选阶段和实验设计对Ti-5553的LPBF工艺进行整体表征、对LPBF制成的样品进行彻底的表征、耐用性/重复性调查以及印刷部件的动态和静态测试。该项目有三个工作包：1)WP1：实验设计和工艺优化；WP2：工艺优化零件的机械测试和分析；以及WP3：制造具有最佳参数的真实航空零件。 起落架零件的LBPF效益是巨大的。印刷部件可以重新设计，以受益于AM提供的设计灵活性和部件整合，从而变得更轻，进而将飞机的燃油消耗降至最低。此外，长期而言，LBPF可以用于此类部件的小批量制造，因为通过将部件整合到一张印刷品中，制造成本将会下降。 这项技术的成果如果成功，将是无处不在的，并将产生深远而广泛的影响。许多行业将受益于将LPBF部署到Ti5553，最直接的例子是航空航天以外的海运业，其综合海上石油钻井平台。成功的结果对我们的工业合作伙伴赛峰来说也是非常重要的，赛峰打算将其活动扩展到AM工艺和印刷的高价值部件。

This project aims at the laser powder-bed fusion (LPBF) of Titanium-5553 for deploying to landing gear systems. LPBF is a class of additive manufacturing (AM) that has provided tremendous opportunities for various industries such as aerospace, tooling and automotive. Given the opportunities provided by LPBF and also the importance of the deployment of this technology for making aerospace parts with lower weight and better load bearing, a pilot study was initiated in early 2018 between the University of Waterloo and Safran Landing Systems Canada Inc. to investigate the feasibility of LPBF of Ti-5553 coupon samples for physical properties measurements. Given the promising results of the pilot study, this collaborative project is proposed to address several remaining challenges including holistic characterizations of the LPBF process for Ti-5553 through a screening phase and design of experiments, a thorough characterization of the LPBF-made specimens, durability/repeatability investigation, and dynamic and static tests of the printed parts. The project has three work packages: 1)WP1: Design of Experiments and process optimization; WP2: Mechanical testing and analysis of process optimized parts; and, WP3: Creating a real aerospace part with optimum parameters. The benefit of LBPF of landing gear parts is tremendous. The printed parts can be redesigned to benefit from design flexibility and parts consolidation that AM offers, thus becoming lighter and in turn, minimize fuel consumption in airplanes. In addition, LBPF can be deployed for low-volume manufacturing of such parts in a longer term, as the fabrication costs will drop through consolidation of parts in one print. The outcome of this technology, if successful, will be pervasive and will have a deep and broad impact. Many industries will benefit from the deployment of LPBF to Ti5553, with the most immediate example beyond aerospace being the maritime industry, for their integrated offshore oil rigs. Successful outcomes will also be of tremendous importance to our industrial partner, Safran, which intends to expand its activities to the AM processes and printed high-valued components.