GOALI: Tooling-Workpiece Interface Understanding and Modeling Towards Concurrent Stamping Engineering

本课题的研究目标是探索材料推进引起的刀具-工件界面变化和刀具磨损的本质，并在冲压工艺和工件质量控制的环境下开发界面并行建模、仿真和优化系统（Interface-CMSOS），辅以实验测量和验证。该研究还将针对工业目标，建立模具材料/表面设计指南，以便在新车项目中成功实施先进的高强度钢。实验和数值方法将被用来追求的目标。计划开展四项任务：（1）了解基于多尺度建模的工具-工件界面和工具磨损，（2）模型验证和与冲压试验结果的相关性，（3）模型集成以形成Interface-C-MSOS框架，以及（4）考虑变化和不确定性的优化方法和有效算法的开发。本项目的教育目标是将研究与教育相结合，将教学与工业实践相结合，这将通过PI和参与工程师的合作来实现。预计研究结果将提供对工具-工件界面，模具磨损以及由于材料升级而导致的界面变化趋势的关键理解，以及与新材料开发携手推进这种理解的方法。这一接口-CMSOS是系统地解决材料更新中出现的问题的第一次综合尝试。同样重要的是，Interface-CMSOS的理念倾向于鼓励新材料的应用，使材料研究和开发更有利可图。

The research objective of the project is to explore the nature of changing tooling-workpiece interface and tooling wear due to material advancing, and to develop an Interface Concurrent Modeling, Simulation and Optimization System (Interface-CMSOS) in the environment of stamping process and workpiece quality control, assisted by experimental measurements and validation. The research will also aim at industrial goals to establish die material/surface design guidelines for successful implementations of advanced high strength steels in new vehicle programs. Both experimental and numerical approaches will be used to pursue the objective. Four tasks are planned: (1) Understanding the tooling-workpiece interface and tooling wear based on multi-scale modeling, (2) model validation and correlation with stamping test results, (3) Integration of models to form an Interface-C-MSOS framework, and (4) Development of an optimization methodology and efficient algorithms considering variations and uncertainties. The education objective of the project is to integrate research with education and to connect teaching with industrial practice, which will be accomplished through collaborations among PIs and participating engineers.It is anticipated that the research results will provide critical understanding of tooling-workpiece interfaces, die wear and the trend of interface changing due to material upgrading, as well as approaches for advancing such understanding hand-in-hand with new material development. This Interface-CMSOS is the first integrated attempt to tackle systematically the problems raised in material updating. Equally important, the idea of Interface-CMSOS tends to encourage the application of new materials, making material research and development more profitable.