深微孔电火花加工非电参数工艺规律研究

In micro and deep hole EDM, non-electric parameters like dielectric fluid and electrode material influence the processing efficiency and quality greatly, thus to reveal the rules of these parameters are of important significance to enhance the performance of micro and deep hole EDM. In this paper, kerosene and deionized water are used to carry out process tests under different conditions, taking processing efficiency as the objective. The tests show that deionized water is more suitable to process 45 steel and red copper while kerosene is more suitable for processing aluminum alloy；moreover, brass, tungsten and molybdenum are adopted to conduct process tests targeting at processing efficiency as well. Test results demonstrate that tungsten is the best material to process 45 steel, tungsten and molybdenum are all suitable for processing red copper and brass are most suitable to process aluminum alloy. This paper has made a useful exploration in selecting dielectric fluid and electrode material, and the research achievement can provide important references to achieve high efficiency and high quality process in micro and deep hole EDM.