Analysis and Gap Monitoring for Improving Micro Electro Discharge Machining (EDM) Performance

用于提高微放电加工 (EDM) 性能的分析和间隙监测

• 批准号: 0355380
• 负责人: Kamlakar Rajurkar
• 金额: $ 20万
• 依托单位: University of Nebraska-Lincoln
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2004
• 资助国家: 美国
• 起止时间: 2004-09-01 至 2008-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0355380&HistoricalAwards=false
• 关键词: Analysis; Gap; Monitoring; Improving; Micro

This grant provides funding for the development of experimental data, and qualitative and quantitative modeling of the emerging technology of micro Electrical Discharge Machining (EDM) process for enhancing its application potential in electronics, automotive, medical and aircraft and aerospace industries. The developed data and models will provide basic information for selecting appropriate values of parameters such as current, voltage, capacitance, work and tool materials, feed and dialectic medium for obtaining optimal performance in material removal rates, surface integrity, and tool wear rates in actual industrial settings. The research will be performed on a state-of-the art Micro-EDM available at the University of Nebraska-Lincoln. The modeling effort involves integration heat transfer due the electric discharge and dielectric fluid (with its temperature and viscosity variation) flow at the gap using a technique called Smoothed Particle Hydrodynamics (SPH).If successful, the results of this research will lead to a better understanding of the selection pf parameters for optimal productivity and performance of micro EDM process for many industrial applications. The modeling effort will also lead to an enhanced knowledge of the physical processes occurring at the inter electrode gap and their influence on the process performance. This, in turn, will also provide impetus to apply developed techniques and tools to other similar micro machining process such as micro Electrochemical Machining (ECM) and Micro Ultrasonic Machining (USM). The hardware and software developed during this project will be implemented in undergraduate and graduate courses at the University of Nebraska-Lincoln and will also be posted on the web for easy access by all interested professionals.

该赠款为微放电加工（EDM）工艺新兴技术的实验数据开发以及定性和定量建模提供资金，以增强其在电子、汽车、医疗、飞机和航空航天工业中的应用潜力。开发的数据和模型将为选择适当的参数值（例如电流、电压、电容、工作和刀具材料、进给和辩证介质）提供基本信息，以便在实际中获得材料去除率、表面完整性和刀具磨损率的最佳性能。工业环境。该研究将在内布拉斯加大学林肯分校最先进的微电火花加工机上进行。建模工作涉及使用平滑粒子流体动力学 (SPH) 技术，由于放电和介电流体（及其温度和粘度变化）在间隙处流动而产生的积分传热。如果成功，这项研究的结果将带来更好的结果。了解如何选择 pf 参数，以实现许多工业应用中微细 EDM 工艺的最佳生产率和性能。建模工作还将增强对电极间间隙发生的物理过程及其对过程性能的影响的了解。反过来，这也将推动将开发的技术和工具应用于其他类似的微加工工艺，例如微电化学加工 (ECM) 和微超声波加工 (USM)。该项目期间开发的硬件和软件将在内布拉斯加大学林肯分校的本科生和研究生课程中实施，并将发布在网络上，以便所有感兴趣的专业人士轻松访问。