Development of Aerospace Quality Aluminum Alloys Utilizing Advanced Powder Metallurgy Technologies

20.越南制造的轻金属航空航天部件进入市场的一个主要障碍是价格竞争力。拟议的研究项目旨在通过开发低成本的可持续制造技术，帮助面临这一困境的加拿大公司。特别是那些依靠粉末冶金（PM）先进金属成形技术的企业。在这里，部件可以直接由轻金属粉末（即铝合金）以近净形的方式制造。这种方法的优点在于，材料产率>95%是标准，能耗比竞争技术低约50%，并且伴随地，制造周期的环境足迹是有限的。现已设计了一个战略联盟，以利用这些优势，最大限度地提高工业相关性和加拿大航空航天部门商业实施的长期前景。此次联合涉及商用飞机制造（波音）和工程部件粉末冶金生产（GKN烧结金属）的全球领导者沿着专门从事铝粉末冶金材料开发的学术研究人员。超临界技术的目标是利用粉末冶金工艺的优点，开发新型铝基材料，使其具有比锻造航空铝合金更优越的上级性能。为了迎接这一挑战，各种PM处理策略将系统地探讨。一个流将强调利用放电等离子烧结的新兴烧结策略将粉末直接加工成完全致密的产品。第二个项目将侧重于应用目前在高性能汽车零部件工业制造中采用的现有生产技术。所谓的压制和烧结处理，该活动流将基于粉末压实和液相烧结的两个阶段顺序。每个流将在具有航空航天相关化学成分的粉末上完成，并且还将探索热机械加工的影响。在所有情况下，优化的工业生产序列将与支持合作伙伴直接合作设计。

A key barrier to market entry for Canadian-manufactured light metal aerospace components is price competitiveness. The proposed research project seeks to assist Canadian firms faced with this dilemma through the development of low-cost sustainable manufacturing technologies. In particular, those that rely on the advanced metal forming technology of powder metallurgy (PM). Here, components can be directly fabricated from light metal powders (i.e. aluminum alloys) in a near-net-shape manner. This approach is advantageous in that material yields >95% are the norm, energy consumption is some 50% lower than competing technologies, and concomitantly, the environmental footprint of the manufacturing cycle is limited. A strategic alliance has now been devised to exploit these advantages in a way that maximizes industrial relevance and the long-term prospects for commercial implementation within Canada's aerospace sector. The unification involves global leaders in commercial aircraft fabrication (Boeing) and the PM production of engineered components (GKN Sinter Metals) along with academic researchers that specialize in the development of aluminum PM materials. The over-arching technical objective is to leverage the benefits of PM processing in the development of novel aluminum-based materials that exhibit superior properties to wrought aerospace aluminum alloys. To meet this challenge, a variety of PM processing strategies will be systematically explored. One stream will emphasize the direct processing of powders into a fully dense product utilizing the emerging sintering strategy of spark plasma sintering. The second will focus on the application of established production technology currently employed in the industrial manufacture of high performance automotive components. So called press-and-sinter processing, this stream of activity will be based on the two stage sequence of powder compaction and liquid phase sintering. Each stream will be completed on powders with aerospace-relevant chemistries and will also explore the effects of thermo-mechanical working. In all cases, optimized industrial production sequences will be devised in direct collaboration with the supporting partners.