GOALI: Formability in High Velocity Forming

目标：高速成形中的成形性

• 批准号: 9813244
• 负责人: Glenn Daehn
• 金额: $ 24万
• 依托单位: Ohio State University Research Foundation -DO NOT USE
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1998
• 资助国家: 美国
• 起止时间: 1998-09-15 至 2002-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9813244&HistoricalAwards=false
• 关键词: GOALI; Formability; Velocity; Forming

Recent work has demonstrated that high velocity metal forming can stretch metals considerably further than traditional quasi-static forming. Further, practical strategies have been developed to use high-velocity electromagnetic forming to produce complex, low-cost sheet components. Applying this technology to aluminum can provide significant cost savings in aircraft manufacture and the ability to inexpensively produce lighter weight automotive structures. While many of the controlling factors for the high velocity forming process have been identified, there is little basic understanding of the mechanisms that produce the extended ductility and also very little data on the formability of sheet metals at the high velocities. In this program, the strains to failure of aluminum alloys shall be measured in high velocity forming using both simple boundary conditions that lend themselves to basic understanding as well as complex conditions that are more relevant to manufacturing. These experimental tests will be highly instrumented to capture the dynamic behavior. The experimental results of this GOALI project will be used to develop models of high velocity sheet metal formability, which should have significant industrial application in predicting processing capability

最近的研究表明，高速金属成形可以拉伸金属比传统的准静态成形更远。 此外，已经开发出实用的策略来使用高速电磁成形来生产复杂、低成本的板材部件。将这种技术应用于铝可以在飞机制造中节省大量成本，并能够廉价地生产重量更轻的汽车结构。 虽然许多高速成形过程的控制因素已被确定，但对产生扩展延展性的机制几乎没有基本的了解，并且关于高速下金属板的可成形性的数据也非常少。在本程序中，铝合金的失效应变应在高速成形中测量，使用简单的边界条件（有助于基本理解）以及与制造更相关的复杂条件。 这些实验测试将高度仪器化，以捕捉动态行为。GOALI项目的实验结果将用于开发高速金属板成形性模型，该模型在预测加工能力方面应具有重要的工业应用