New and improved AL alloy for high pressure die casting of structural automotive components - characterization, heat treatment and mechanical

用于汽车结构部件高压压铸的新型改进铝合金 - 表征、热处理和机械

• 批准号: 512798-2017
• 负责人: Shankar, Sumanth
• 金额: $ 3.53万
• 依托单位: McMaster University
• 依托单位国家: 加拿大
• 项目类别: Collaborative Research and Development Grants
• 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=618368
• 关键词: New; improved; AL; alloy; pressure

Recently, a new Al alloy was developed from the family of the AA7xxx (Al-Zn-Cu-Mg) alloy to enable structural automotive cast components that would potentially replace several high density iron based components and realize significant weight reduction of the an automobile curb weight along with the economical and environmental benefits through improved fuel efficiency and reduced Green House Gases (GHG) when implemented. Large scale industrial testing of the new alloy had firmly established the proof-of-concept and yielded data to demonstrate a 200% improvement in strength and ductility when compared to the current state-of-the-art alloy, improved die tool life, reduce operating and maintenance cost of the high pressure die casting (HPDC) process and improved recyclability of a light weight automotive structural alloy. A provisional patent application has been filed to protect the intellectual property pertaining to this new alloy invention. There would be a significant positive economic and environmental impact in the automotive manufacturing sector and automobiles at large globally through the successful implementation of this technology in commercial practice. This project proposal aims to carry out critical technological assessment through research and implementation in order to establish the operating boundaries of this new alloy in the HPDC process: geometric design constraints of the casting component, hot tearing susceptibility and heat treatment optimization. The deliverable of this project would establish certain viable operating windows for the new alloy that would guide the choice of automotive products that could possibly be implemented at the onset of commercialization with minimum risk of failure. The strategy of the project would be to carry out intense laboratory scale research and development at the initial stage to characterize and evaluate the optimum operation boundaries of the alloy, identify an existing commercial automotive product that would satisfy the criteria obtained from the laboratory scale R&D and carry out industrial scale trial to validate the feasibility of implementing the alloy in commercial automotive casting practice.

最近，AA7XXX（Al-Zn-Cu-mg）合金的家族开发了一种新的AL合金，以实现结构性汽车铸造组件，这些铸件有可能取代几种基于高密度铁的组件，并通过改善的燃油效率和降低的燃油效率和降低的燃油效率（GHG）（GHG）（GHG）（GHG）（GHG）（GHG）（GHG）实现了大量的自动机器人限量的重量。与当前的最新合金，改善的模具寿命相比，对新合金的大规模工业测试已经牢固建立了概念证明，并产生了数据，以证明其强度和延展性提高了200％，降低了高压铸造（HPDC）流程的运行和维护成本（HPDC）流程的操作和维护成本，并提高了轻质体重自动型的可恢复能力。已提出了临时专利申请，以保护与本合金发明有关的知识产权。通过在商业实践中成功实施这项技术，全球汽车制造业和汽车在全球范围内将对经济和环境产生重大的积极影响。该项目的建议旨在通过研究和实施进行关键的技术评估，以在HPDC过程中建立这种新合金的运行界限：铸造组件的几何设计约束，热撕裂的易感性和热处理优化。该项目的可交付能力将为新合金建立某些可行的操作窗口，这些窗口将指导选择在商业化开始时可以实施的汽车产品，并且最小的失败风险。该项目的策略是在初始阶段进行强烈的实验室规模研究和开发，以表征和评估合金的最佳操作界限，确定现有的商业汽车产品，该产品可以满足从实验室规模的研发中获得的标准并进行工业规模试验，以验证在商业自动机构铸造中实施合金的可行性。