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

本项目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，并在实验测量和验证的辅助下，开发一个在冲压工艺和工件质量控制环境下的界面并行建模、仿真和优化系统(界面-CMSOS)。这项研究还将以工业目标为目标，建立模具材料/表面设计指南，以便在新汽车计划中成功实施先进的高强度钢。将使用实验和数值方法来实现这一目标。计划了四项任务：(1)基于多尺度建模了解刀具-工件界面和刀具磨损；(2)模型验证和与冲压试验结果的关联；(3)集成模型以形成界面-C-MSOS框架；(4)开发考虑变化和不确定性的优化方法和高效算法。该项目的教育目标是将研究与教育相结合，并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实现。预计研究成果将提供对刀具-工件界面、模具磨损和由于材料升级而导致的界面变化趋势的批判性理解，以及在新材料开发的同时促进这种理解的方法。这个界面-CMSOS是系统地解决材料更新中提出的问题的第一次综合尝试。同样重要的是，界面-CMSOS的想法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.