In-process Material Evaluation of Welding and Additive Manufacturing

焊接和增材制造的过程材料评估

• 批准号: 2745491
• 金额: --
• 依托单位: University of Strathclyde
• 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: 已结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2745491
• 关键词: process; Material; Evaluation; Welding; Additive

This project aligns directly with one key deliverable in the 5-year plan entitled "Towards Industry 4.0: In-process Repair of Welding and Wire Additive Manufacturing (IRWWAM)" associated with the Strathclyde Chancellor's Fellowship for the primary supervisor (Dr Javadi). The core of this ambitions plan is fully automated Non-Destructive Evaluation (NDE) in robotic welding and Wire Arc Additive Manufacturing (WAAM), where the three main research themes are: (I) in-process defect detection, (II) in-process residual stress measurement and (III) in-process material evaluation. When these three core research themes are coupled with process modelling and simulation, the project will deliver an Industry 4.0 adopted system in which the sample can be fully inspected and importantly, repaired during the manufacturing process, if deemed necessary by the system. The in-situ measurement systems will be also linked to the manufacturing system for improving the quality control and creation of a closed-loop feedback system. Manufacturing within the IRWWAM framework will save time and energy (which is usually wasted in backward transmissions between the manufacturing and inspection stations) and hence will be better for the environment. The main plan is then in line with the national UK government's post-COVID recovery plan. This PhD will focus on the in-process monitoring of the material evolution during welding and additive manufacturing. The necessity of "in-process" evaluation has been justified by the Centre for Ultrasonic Engineering (CUE) when the in-process inspection was established for the multi-pass welding [Javadi et al, Materials & Design, Volume 191, 2020]. However, this was not extended to the material evaluation (with the focus on the residual stress) and there is currently no NDT method to monitor the residual stress during the welding and additive manufacturing. The in-process material evaluation will be considered in this project and it is then desired that the candidate is familiar with (or enthusiastic to learn) the following research and technical activities: NDE material evaluation, residual stress, process modelling and verification, in-process inspection and Industry 4.0.This project will be based in the new Faculty of Engineering facility "Sensor Enabled Automation Robotics & Control Hub (SEARCH) laboratory and will link directly with the NDE research team operating within the CUE. There is an excellent opportunity to enhance the capabilities of the world's first automated robotic AM facility with integrated NDE (RoboWAAM cell currently installed at AFRC) through the output of this project. Hence, there is an obvious route into the AFRC, Lightweight Manufacturing Centre (LMC) and National Manufacturing Institute Scotland (NMIS) activities and industrial network. Through CUE, the project will complement Strathclyde's current The UK Research Centre in NDE (RCNDE) research, which will offer opportunities to collaborate within the RCNDE academic and industrial membership.

该项目直接与题为“迈向工业4.0：焊接和电线添加剂制造的过程中修复(IRWWAM)”的五年计划中的一项关键成果保持一致，该五年计划与Strathclyde校长的初级主管奖学金(博士贾瓦迪博士)相关。这一雄心勃勃计划的核心是机器人焊接和焊丝电弧添加剂制造(WAAM)中的全自动无损评估(NDE)，其中三个主要研究主题是：(I)过程中缺陷检测，(Ii)过程中残余应力测量和(Iii)过程中材料评估。当这三个核心研究主题与过程建模和模拟相结合时，该项目将提供一个Industry 4.0采用的系统，在该系统中，样品可以进行全面检查，重要的是，如果系统认为有必要，还可以在制造过程中进行修复。现场测量系统还将与制造系统连接，以改进质量控制和建立闭环反馈系统。IRWWAM框架内的制造将节省时间和能源(通常浪费在制造和检查站之间的反向传输中)，因此对环境更有利。然后，主要计划与英国中央政府在新冠肺炎后的恢复计划保持一致。本博士学位将专注于焊接和添加剂制造过程中材料演变的过程监控。超声工程中心(CUE)在为多道焊接建立了过程中检查时，证明了“过程中”评估的必要性[贾瓦迪等人，材料与设计，第191卷，2020]。然而，这并没有扩展到材料评估(重点是残余应力)，目前还没有无损检测方法来监测焊接和添加剂制造过程中的残余应力。该项目将考虑过程中材料的评估，然后希望应聘者熟悉(或热衷于学习)以下研究和技术活动：NDE材料评估、残余应力、过程建模和验证、过程检验和工业4.0。该项目将基于新的工程学院设施“传感器使能的自动化机器人和控制中心(SEARE)”实验室，并将与在CUE内运作的NDE研究团队直接联系。这是一个极好的机会，可以通过该项目的成果来增强世界上第一个具有集成NDE(目前安装在AFRC的RoboWAAM单元)的自动化机器人AM设施的能力。因此，有一条明显的路线可以进入AFRC、轻量化制造中心(LMC)和苏格兰国家制造研究所(NMI)的活动和工业网络。通过CUE，该项目将补充Strathclyde目前的英国NDE研究中心(RCNDE)研究，这将提供在RCNDE学术和工业成员内部进行合作的机会。