GOALI: Characterization, Modeling, and Optimization of Magnetic Pulse Welding Processes

GOALI：磁脉冲焊接工艺的表征、建模和优化

• 批准号: 0928319
• 负责人: Brad Kinsey
• 金额: $ 34.96万
• 依托单位: University of New Hampshire
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2009
• 资助国家: 美国
• 起止时间: 2009-09-01 至 2013-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0928319&HistoricalAwards=false
• 关键词: GOALI; Characterization; Modeling; Optimization; Magnetic

The research objective of this Grant Opportunity for Academic Liaison with Industry (GOALI) award is to create a fundamental understanding of the Magnetic Pulsed Welding (MPW) process through a collaboration with an industrial partner Magneform and UNH faculty members from Mechanical Engineering, Physics, and Materials Science. While MPW has been used as a process for decades, the process is typically implemented based on experience and trial and error experimentation. The tasks of the proposed research are to experimentally investigate axisymmetric MPW joints including measurement of the deformation; to conduct materials testing of both the interface of the weld and the mechanical properties of the final joint; to model the process with respect to the electromagnetics, thermomechanical effects (which will allow for phase transformation), and wave formation at the interface of the weld; and to optimize the process parameters based on the experimental and modeling efforts. If successful, the results of this research will benefit society at large through reduced weight of structures as dissimilar metals will be effectively welded and thus lower weight components will be located in non-strength critical areas. In addition, this research will add significantly to the modeling and materials characterization during high rate deformation and impact conditions, such as electromagnetic forming, ballistic impact, etc. Collaborating with Magneform offers several advantages including the broad dissemination of the results to industry. Graduate students will benefit from the interdisciplinary nature of the research and incorporation of results into several courses. Finally, Research Experience for Teachers participants will be involved in the research and will create modules for high school classrooms based on the Physics and magnetism aspects of the project. This high rate deformation process will capture the attention and imagination of high school students and potentially attract individuals from underrepresented groups to the project.This project is jointly funded by the Materials Processing & Manufacturing (MPM) Program, of the Civil, Mechanical, and Manufacturing Innovation (CMMI) Division,the Thermal Transport Processes (TTP) Program, of the Chemical, Bioengineering, Environmental, and Transport Systems (CBET) Division and, the Grant Opportunity for Academic Liaison with Industry (GOALI) Program, of the Industrical Innovation and Partnerships (IIP)Divison, all within the Directorate for Engineering (ENG).

与工业联络（Goari）奖的学术联络机会的研究目标是通过与工业合作伙伴Magneform和机械工程，物理，物理和物理学和机械工程，物理学和IND教职员工的合作来对磁性脉冲焊接（MPW）流程建立基本了解。材料科学。尽管MPW已被用作几十年的过程，但通常根据经验，反复试验实验实施该过程。拟议的研究的任务是实验研究轴对称MPW接头，包括测量变形。对焊缝的界面和最终接头的机械性能进行材料测试；为了建模相对于电磁学的过程，热力学效应（将允许相变）以及焊缝界面处的波浪形成；并根据实验和建模工作优化过程参数。如果成功的话，这项研究的结果将通过减轻结构的重量来使社会受益，因为将有效焊接不同的金属，因此，较低的重量成分将位于非强度关键领域。此外，这项研究将大大增加高速变形和影响条件下的建模和材料表征，例如电磁形成，弹道影响等。与Magneform合作提供了几个优势，包括将结果广泛传播到行业中。研究生将从研究的跨学科性质中受益，并将结果纳入多个课程。最后，教师参与者的研究经验将参与研究，并将根据项目的物理和磁性方面为高中教室创建模块。这个高率变形过程将吸引高中生的关注和想象力，并有可能吸引从代表性不足的群体到该项目的个人。该项目由材料加工与制造计划（MPM）共同资助，民用，机械和制造业化学，生物工程，环境和运输系统（CBET）部门的创新（CMMI）部门，热运输过程（TTP）计划，以及与工业创新和工业创新的学术联络机构的赠款机会合作伙伴关系（IIP）分区，全部在工程局（ENG）范围内。