Digital Lifecycle Manufacturing / Laser Welding Applications Lab

数字化生命周期制造/激光焊接应用实验室

• 批准号: 2722702
• 金额: --
• 依托单位: University of Warwick
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2022
• 资助国家: 英国
• 起止时间: 2022 至 无数据
• 项目状态: 未结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2722702
• 关键词: Digital; Lifecycle; Manufacturing; Laser; Welding

Project Description: The scope of this iCASE PhD project is to model and simulate the formation and propagation of weld cracks in RLW of 6xxx high strength aluminium extrusions and to integrate those models with readily available sensors in order to enable in-process monitoring of RLW weldments. During this project, we will complement sensor data streams, gathered by in-process detectors and processed via machine learning techniques, with physics-driven CAE simulation. The physics-driven CAE simulation will combine knowledge about the laser-to-material interaction, solidification mechanisms, thermo-dynamics and material microstructure. Besides, the physics-driven simulation approach will also be used as a standalone tool during the early design stages to support the selection of welding parameters and make a more informative decision about the crack sensitivity of specific aluminium alloys. This project will develop new capabilities for modelling and characterising cracking mechanisms in 6xxx high strength aluminium extrusions, and the outcomes of the project will inform: (1) selection and optimisation of welding process parameters; (2) in-process monitoring of weld cracks; (3) adaptive closed-loop process control, with the final aim to achieving defect-free welds.Project Summary and workplanObjectives of the iCASE program are as follows:(1) Review existing models for modelling and prediction of mechanisms of weld cracking(2) Development of physics-driven CAE simulation(3) Propose strategy for integrating physics-driven CAE simulation and sensor data streams(4) Verification and validation of proposed models with relevant materials (alloys and core applications to be selected based on Constellium's input).Fit to EPSRC Themes: The project directly addresses the ESPRC theme 'Manufacturing the Future'. It also directly contributes to ESPRC research areas such as Manufacturing Technologies and Materials Engineering - Metals and Alloys.

项目描述：该ICASE PHD项目的范围是建模和模拟6xxx高强度铝排气液的RLW中焊缝裂纹的形成和繁殖，并将这些模型与随时可用的传感器集成在一起，以实现对RLW焊接的过程中的监视。在此项目期间，我们将补充传感器数据流，该数据流是由过程内检测器收集的，并通过机器学习技术进行处理，并通过物理驱动的CAE模拟进行处理。物理驱动的CAE模拟将结合有关激光与物质相互作用，固化机制，热动力学和材料微观结构的知识。此外，物理驱动的仿真方法还将在早期设计阶段用作独立工具，以支持选择焊接参数，并对特定铝合金的裂纹灵敏度做出更有用的决定。该项目将开发新的功能，用于建模和表征6xxx高强度铝挤出物中的开裂机制，该项目的结果将告知：（1）选择和优化焊接过程参数； （2）对焊缝裂纹的进程监测； （3）自适应闭环过程控制，以实现无缺陷的焊缝的最终目的。项目的汇总和ICASE计划的工作计划对象如下：（1）审查现有的模型，用于建模和预测焊接机制的建模和预测（2）物理驱动型模拟的开发（3）对物理学的策略（3）提出的CAE策略（4提出的具有相关材料的模型（根据星座的输入选择合金和核心应用程序）。拟合EPSRC主题：该项目直接解决ESPRC主题“制造未来”。它还直接为ESPRC研究领域做出了贡献，例如制造技术和材料工程 - 金属和合金。