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: $ 10.43万
• 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: 2017
• 资助国家: 加拿大
• 起止时间: 2017-01-01 至 2018-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=618355
• 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 globallycompetitive, aero engine manufacturers such as Pratt and Whitney Canada (P&WC) have increasingly focusedon 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 ofgreenhouse gases and the Ni and Cr elements contained within engine parts are non renewable limitedresources. Therefore a high BTF has a significant negative environmental impact.Aerospace companies are adopting more near net shape (NS) manufacturing to reduce BTF, overallmanufacturing costs and develop green technologies. P&WC is pursuing a net shape method which combinesfurnace brazing with powder injected molding (PIM). The challenge is to create PIM parts and brazed jointsthat 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 togain a fundamental understanding of Ni-based superalloy brazing and PIM processing. This thermal analysiswill be used to develop processing techniques which avoid the formation of detrimental boride compounds andporosity in the brazed joint. The analysis will also develop a deep understanding of the changes taking placeduring 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 manufacturingoperations, thus decreasing the BTF, cost and material waste. This will lead to a more competitive Canadianaerospace industry and economy, the development of green manufacturing technologies and an improvedenvironment. Thirteen highly qualified professionals will be trained during the program, who will contribute tothe aerospace industry for decades to come.

由于燃油成本不断上涨，航空旅行已成为一个对成本非常敏感的行业。为了保持全球竞争力，普惠加拿大公司 (P&WC) 等航空发动机制造商越来越注重降低制造成本。造成燃气涡轮发动机成本的一个因素是高买飞比 (BTF)，这是由于传统制造方法严重依赖材料去除和浪费（即锻造坯料加工）而导致的。初级金属生产是温室气体产生的重要因素，发动机零件中含有的镍和铬元素是不可再生的有限资源。因此，高 BTF 会对环境产生显着的负面影响。航空航天公司正在采用更多的近净成形 (NS) 制造来降低 BTF、整体制造成本并开发绿色技术。 P&WC 正在寻求一种将炉钎焊与粉末注射成型 (PIM) 相结合的净成型方法。面临的挑战是创建具有与使用传统制造方法制造的零件相同的机械性能和性能的 PIM 零件和钎焊接头。该研究计划的目标是开发和使用多种先进的热分析技术，以对镍基高温合金钎焊和 PIM 加工有基本的了解。这种热分析将用于开发加工技术，避免在钎焊接头中形成有害的硼化物和孔隙。该分析还将深入了解 PIM 零件脱脂、烧结和热处理过程中发生的变化。该计划将使 P&WC 将 NS 处理扩展到其发动机制造业务的结构零件，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。该项目将培训 13 名高素质专业人员，他们将在未来几十年为航空航天业做出贡献。