Development, analysis and application of surface-oxidized tool electrodes for optimization of electro-discharge drilling – OXI4EDM

用于优化放电钻孔的表面氧化工具电极的开发、分析和应用 – OXI4EDM

• 批准号: 425366504
• 负责人: Professor Dr.-Ing. Eckart Uhlmann
• 金额: --
• 依托单位: Fachgebiet Werkzeugmaschinen und Fertigungstechnik
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2019
• 资助国家: 德国
• 起止时间: 2018-12-31 至 2021-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/425366504?language=en
• 关键词: Development; analysis; application; surface; oxidized

The medium-sized mold and tool making industry, as one of the most important branches in Germany, is confronted with new challenges in global markets due to political and economic developments. In order to ensure competitiveness, the German mold and tool making industry has to maintain its superior quality and productivity by using innovative production technologies.Electro-discharge drilling (EDD) is used for mold and tool making because it’s possible to machine any electrically conductive material, regardless of hardness and strength. The process-related flushing of debris across the side gap leads to negative process impairments due to short circuits and secondary discharges. The aim of the project is therefore the optimization of EDD by the development, analysis and use of innovative surface-oxidized tool electrodes made of copper and brass. By means of the oxidation of the electrode surfaces, the tool lateral surfaces are almost electrically insulated in a previously unreacted manner in order to minimize the shorts and side discharges occurring in the side gap. Based on the knowledge gained in the research project it will be possible to produce drill holes with a greatly reduced process time, with a high aspect ratio, and improved quality (for instance reduced conicity).

作为德国最重要的分支机构之一，中型霉菌和工具行业由于政治和经济发展而面临着全球市场的新挑战。为了确保竞争力，德国的模具和工具制造行业必须通过使用创新的生产技术来保持其卓越的质量和生产力。电气放电钻探（EDD）用于模具和工具制造，因为无论硬度和强度如何，都可以机械加工任何导电材料。横跨侧间隙的碎屑与过程相关的冲洗会导致由于短路和次要放电而导致的负过程障碍。因此，该项目的目的是通过铜和黄铜制成的创新表面氧化工具电子对EDD进行优化。通过电极表面的氧化，工具侧面几乎以先前未反应的方式进行电绝缘，以最大程度地减少在侧间隙中发生的短裤和侧面放电。基于研究项目中获得的知识，可以以高度比率和提高质量（例如降低的锥度）的过程时间大大减少过程时间生产钻孔。