NSERC/Pratt and Whitney Canada Industrial Research Chair in Structural Brazing and Processing of Powder Metallurgy Superalloys

NSERC/Pratt and Whitney 加拿大粉末冶金高温合金结构钎焊和加工工业研究主席

• 批准号: 429700-2016
• 负责人: Corbin, Stephen
• 金额: $ 12.18万
• 依托单位: Dalhousie University
• 依托单位国家: 加拿大
• 项目类别: Industrial Research Chairs
• 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=696784
• 关键词: NSERC; Pratt; Whitney; Canada; Industrial

Due to the rising cost of fuel, air travel has become a very cost sensitive industry. To remain globally competitive, aero engine manufacturers such as Pratt and Whitney Canada (P&WC) have increasingly focused on reducing manufacturing costs. A contributor to the cost of gas turbine engines is a high buy-to-fly ratio (BTF) resulting from a heavy reliance of traditional manufacturing methods on material removal and waste (i.e. machining of wrought billets). Primary metal production is a significant contributor to the production of greenhouse gases and the Ni and Cr elements contained within engine parts are non renewable limited resources. Therefore a high BTF has a significant negative environmental impact. Aerospace companies are adopting more near net shape (NS) manufacturing to reduce BTF, overall manufacturing costs and develop green technologies. P&WC is pursuing a net shape method which combines furnace brazing with powder injected molding (PIM). The challenge is to create PIM parts and brazed joints that have mechanical properties and performance equal to parts made using traditional manufacturing methods. The goal of this research program is to develop and use a number of advanced thermal analysis techniques to gain a fundamental understanding of Ni-based superalloy brazing and PIM processing. This thermal analysis will be used to develop processing techniques which avoid the formation of detrimental boride compounds and porosity in the brazed joint. The analysis will also develop a deep understanding of the changes taking place during debinding, sintering and heat treatment of PIM parts. This program will allow P&WC to extend NS processing to the structural parts of their engine manufacturing operations, thus decreasing the BTF, cost and material waste. This will lead to a more competitive Canadian aerospace industry and economy, the development of green manufacturing technologies and an improved environment. Thirteen highly qualified professionals will be trained during the program, who will contribute to the aerospace industry for decades to come.

由于燃料成本的上涨，航空旅行已成为一个对成本非常敏感的行业。保持全球 具有竞争力的航空发动机制造商，如加拿大普惠公司（P&WC）， 降低制造成本。燃气涡轮机发动机成本的一个贡献因素是高的购买飞行比 (BTF)这是由于传统制造方法严重依赖于材料去除和浪费（即， 锻造坯料的加工）。初级金属生产是一个重要的贡献， 温室气体以及发动机部件中所含的Ni和Cr元素是不可再生的 资源因此，高BTF具有显著的负面环境影响。 航空航天公司正在采用更多的近净形（NS）制造，以减少整体BTF 制造成本和开发绿色技术。P&WC正在寻求一种净形方法， 采用粉末注射成型（PIM）进行炉内钎焊。挑战在于创建PIM零件和钎焊接头 其机械性能和性能等同于使用传统制造方法制造的部件。 该研究计划的目标是开发和使用一些先进的热分析技术， 获得镍基高温合金钎焊和PIM加工的基本理解。这种热分析 将用于开发避免形成有害硼化物化合物的加工技术， 钎焊接头中的孔隙。分析还将深入了解正在发生的变化 在PIM部件的脱脂、烧结和热处理过程中。 该计划将使普惠公司能够将NS加工扩展到其发动机制造的结构部件 操作，从而减少BTF、成本和材料浪费。这将导致一个更有竞争力的加拿大 航空航天工业和经济，绿色制造技术的发展和改进 环境13名高素质的专业人员将在该计划期间接受培训，他们将为 未来几十年的航空航天工业。