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 博士项目的范围是对 6xxx 高强度铝挤压件 RLW 中焊接裂纹的形成和扩展进行建模和模拟，并将这些模型与现成的传感器集成，以便能够对 RLW 焊件进行过程监控。在这个项目中，我们将通过物理驱动的 CAE 模拟来补充传感器数据流，这些数据流由过程中的探测器收集并通过机器学习技术进行处理。物理驱动的 CAE 模拟将结合有关激光与材料相互作用、凝固机制、热力学和材料微观结构的知识。此外，物理驱动的仿真方法也将在早期设计阶段用作独立工具，以支持焊接参数的选择，并对特定铝合金的裂纹敏感性做出更信息丰富的决策。该项目将开发对 6xxx 高强度铝型材的裂纹机制进行建模和表征的新功能，该项目的成果将提供以下信息：（1）焊接工艺参数的选择和优化； (2)焊缝裂纹的过程监测； (3) 自适应闭环过程控制，最终目标是实现无缺陷焊接。项目摘要和工作计划 iCASE 计划的目标如下：(1) 审查现有模型，用于建模和预测焊接裂纹的机制(2 ) 物理驱动 CAE 仿真的开发(3) 提出集成物理驱动 CAE 仿真和传感器数据流的策略(4) 使用相关材料（基于 Constellium 的合金和核心应用选择的合金和核心应用）对所提出的模型进行验证和验证输入）。适合 EPSRC 主题：该项目直接解决 ESPRC 主题“制造未来”。它还直接为 ESPRC 研究领域做出贡献，例如制造技术和材料工程 - 金属和合金。