High speed thermo-forming of 5083 aluminum alloy for use in automotive industry

汽车工业用5083铝合金高速热成型

• 批准号: 487153-2015
• 负责人: Jahazi, Mohammad
• 金额: $ 0.25万
• 依托单位: École de technologie supérieure
• 依托单位国家: 加拿大
• 项目类别: Collaborative Research and Development Grants
• 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=654440
• 关键词: speed; thermo; forming; 5083; aluminum

During the last 30 years the production of lightweight structures has been one of the most important priorities for the auto industry. In recent years, much attention has been paid to aluminum alloys as an alternative to steel particularly for car body panels.To date, the main sheet metal components of car bodies are produced by cold stamping process. However, sheet aluminum alloys, show low formability and sever springback during cold stamping, therefore new forming technologies such as superplastic forming (SPF) have been introduced and used by industry. However, low speed production cycle inherent to SPF, limits its application for mass production of automotive components. Therefore, new technologies with faster production rates need to be developed. One of the most recent technologies is the High Speed Thermo-Forming (HSTF). The production rate by HSTF is estimated to be one order of magnitude higher than the SPF method. In this context, Verbom Inc., one the leaders in the production of SPF aluminum parts for transport industry in Canada, is planning to integrate HSTF technology in its production line. However, in order to reach this goal, a comprehensive investigation of the process is essential and fundamental questions related to temperature evolution during the process, material behavior (constitutive equations), frictional conditions at the interface metal-die, the influence of the forming gas need to be investigated before a full scale industrial application of the HSTF project. The present project has been defined in this context and its objective is to develop a more fundamental understanding of the effects of the above mentioned variables. The project will span over three years and will involve a post-doctoral fellow, a PhD and an MSc student.

在过去的30年中，轻量级结构的生产一直是汽车行业最重要的优先事项之一。近年来，人们对铝合金的替代品（尤其是汽车车身面板）的替代品都引起了很多关注。到目前为止，汽车车体的主钣金组件是通过冷踩踏过程产生的。但是，铝合金在冷冲压过程中表现出较低的形成性和重弹回，因此已引入并使用了新的形成技术，例如超代形成（SPF）。但是，SPF固有的低速产生周期限制了其用于汽车组件批量生产的应用。因此，需要开发具有更快生产率的新技术。最新技术之一是高速热量形成（HSTF）。 HSTF的生产率估计比SPF方法高一个数量级。在这种情况下，Verbom Inc.是加拿大运输行业SPF铝零件生产的领导者，他计划将HSTF技术整合到其生产线上。但是，为了实现这一目标，对该过程进行的全面调查是与过程中温度演化有关的基本问题，材料行为（本构方程），界面金属界面的摩擦条件，形成气体的影响需要在HSTF项目的全面工业应用之前进行研究。在这种情况下，本项目已定义，其目标是对上述变量的影响有更基本的理解。该项目将跨越三年，并将涉及博士后研究员，博士学位和MSC学生。