GOALI: Formability in High Velocity Forming

最近的研究表明，与传统的准静态成形相比，高速金属成形可以将金属拉伸得更远。此外，已经开发出实用的策略，使用高速电磁成形来生产复杂的、低成本的片状部件。将这项技术应用于铝可以为飞机制造节省大量成本，并能够以低成本生产重量更轻的汽车结构。虽然已经确定了许多高速成形过程的控制因素，但对产生延伸延展性的机制的基本理解很少，而且关于板材在高速下的成形性的数据也很少。在这个程序中，铝合金的应变失效应测量在高速成形使用简单的边界条件，使他们自己的基本理解，以及复杂的条件，更相关的制造。这些实验测试将高度仪器化，以捕捉动态行为。该GOALI项目的实验结果将用于开发高速钣金成形性模型，在预测加工能力方面具有重要的工业应用价值

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