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: $ 15万
• 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: 2018
• 资助国家: 加拿大
• 起止时间: 2018-01-01 至 2019-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=648070
• 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.

由于燃料成本的上升，航空旅行已经成为一个对成本非常敏感的行业。为了保持全球竞争力，普惠加拿大（P&WC）等航空发动机制造商越来越关注降低制造成本。燃气涡轮发动机成本的一个贡献因素是高买飞比（BTF），这是由于传统制造方法对材料去除和浪费的严重依赖（即锻造坯料的加工）。原生金属的生产是温室气体排放的重要来源，而发动机部件中所含的Ni和Cr元素是不可再生的有限资源。因此，高BTF对环境有显著的负面影响。航空航天公司正在采用更多的近净形状（NS）制造来降低BTF、总体制造成本和开发绿色技术。P&WC正在追求一种将炉钎焊与粉末注射成型（PIM）相结合的净成型方法。挑战在于制造出与传统制造方法制造的零件具有相同机械性能的PIM零件和钎焊接头**。该研究计划的目标是开发和使用一些先进的热分析技术，以**获得对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加工技术，以避免在钎焊接头中形成有害的硼化物和气孔。该分析还将深入了解PIM零件在脱脂、烧结和热处理过程中发生的变化。该项目将允许P&WC将NS加工扩展到其发动机制造的结构部件，从而降低BTF、成本和材料浪费。这将使加拿大的航空航天工业和经济更具竞争力，发展绿色制造技术，改善环境。该项目将培养13名高素质的专业人员，他们将在未来几十年为**航空航天业做出贡献。