Magnetic Field-Assisted Material Removal in Micro Electro Discharge Machining Process

1033362kapol将要进行的研究是为了更基本地了解用于高精度成型和制造的微电子放电加工（micro-EDM）过程。知识价值：具体目标是：(1)更好地控制用于清除碎片的等离子体，(2)提高对碎片形成和清除的物理机制的理解。这些目标将通过执行四项主要任务来实现：(1)通过稳定等离子体来提高精度；(2)建立熔池流动特性模型；(3)开发磁场辅助碎片清除技术；(4)实验验证用于预测最终驱动该过程的详细传热和流体流动过程的模型。该模型还将用于开发新的磁场辅助碎片清除配置，这将有助于实验设计。微型电火花加工试验台将采用光学发射光谱和水声发射传感器对等离子体进行表征。先进的材料诊断也将用于碎片表征。将发展和试验新的磁场辅助清除碎片的概念。更广泛的影响：该项目将带来微型电火花加工的新特点，反过来，制造精度可能无法通过其他方式实现。这将使高精度、微型部件和设备的制造成为可能，这些部件和设备的特点是由各种工程材料制造的复杂几何形状。这将有助于满足广泛的当前和未来的应用需求，包括但不限于：医学和卫生保健、通信、光学和国防。该项目将包括来自印度和韩国学术和研究机构的研究人员。将努力通过妇女参与工程计划、少数民族工程计划和麦克奈尔学者计划等项目，促进代表性不足群体成员的参与。

1033362KapoorThe research to be carried out is directed toward a more fundamental understanding of the micro-electrical discharge machining (micro-EDM) process employed for high precision shaping and manufacturing. Intellectual Merit: The specific objectives are to:(1) gain better control of the plasma used to remove debris and (2) achieve improved understanding of the physical mechanisms of debris formation and removal. These objectives will be realized through the execution of four principal tasks: (1) improve precision by stabilizing the plasma; (2) model the flow characteristics of the melt pool; (3) develop a magnetic field-assisted debris removal technique; and (4) experimentally validate the model used to predict the detailed heat transfer and fluid flow processes that ultimately drive the process. The model will also be used to develop new magnetic field-assisted debris removal configurations that will assist the experimental design. A micro-EDM test bed with optical emission spectroscopy and underwater acoustic emission sensor capabilities will be employed to characterize the plasma. Advanced material diagnostics will also be used for debris characterization. Novel magnetic field-assisted debris removal concepts will be developed and tested. Broader Impacts: The project will result in new features of the micro-EDM process and, in turn, manufacturing precision that might not be achievable by other means. This will enable manufacture of high-precision, micro-scale components and devices characterized by complex geometries fabricated from a wide range of engineering materials. This will help meet a wide spectrum of current and future needs in applications including but not limited to: medicine and health care, communications, optics, and defense. The project will involve researchers from academic and research institutions in India and South Korea. Efforts will be made to boost the participation of members from underrepresented groups by leveraging programs such as the Women in Engineering Program, the Minority Engineering Program, and the McNair Scholar Program.