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.

由于燃料成本的上涨，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，普拉特和惠特尼加拿大公司(P&WC)等航空发动机制造商越来越注重降低制造成本。燃气轮机发动机成本的一个因素是高买飞比**(BTF)，这是由于严重依赖传统制造方法的材料去除和浪费(即**加工锻坯)造成的。原生金属生产是产生温室气体的重要因素，发动机部件中所含的镍和铬元素是不可再生的有限资源。因此，高的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，以降低BTF，总体制造成本**并开发绿色技术。P&WC正在追求一种将**炉钎焊和粉末注射成型(PIM)相结合的净成形方法。挑战在于制造出与传统制造方法制造的零件机械性能和性能相当的注射成形零件和钎焊接头。**本研究计划的目标是开发和使用许多先进的热分析技术，以**对镍基高温合金的钎焊和注射成形工艺有一个基本的了解。这种热分析**将用于开发处理技术，以避免在焊接接头中形成有害的硼化物化合物和**气孔。分析还将加深对PIM零件在脱脂、烧结和热处理过程中**发生的变化的深入了解。**该计划将允许P&WC将NS加工扩展到其发动机制造的结构零件**，从而减少BTF、成本和材料浪费。这将导致加拿大航空航天工业和经济更具竞争力，绿色制造技术的发展和**环境的改善。在该计划期间，将培训13名高素质的专业人员，他们将在未来几十年为航空航天工业做出贡献。