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油类工作液,如煤油、柴油、变压器油等,是电火花加工长期以来使用的工作液。这类工作液虽然存在着易燃和挥发、分解,以及对皮肤有刺激作用等缺点,但由于加工性能较好,因而仍获得广泛使用。在线切割电火花加工中为克服油类工作液的缺点,很早就改用水质工作液。如去离子水、蒸馏水、水包油型乳化液。然而对成型电火花加工来说,水质工作液在绝缘性和加工性能等方面坯不能很好满足要求。目前尚处于研究开发阶段,因此,一时还难以普遍推广使用。国外从七十年代后期以来,对工作液的
Oil working fluid, such as kerosene, diesel oil, transformer oil, etc., is a long-term use of EDM working fluid. Although this type of working fluid flammable and volatile, decomposition, and the role of the skin irritation and other shortcomings, but due to better processing performance, it is still widely used. EDM online to overcome the shortcomings of the oil working fluid, early use of water quality working fluid. Such as deionized water, distilled water, oil-in-water emulsion. However, EDM processing, water quality working fluid in the insulation and processing performance and other aspects of the blank can not meet the requirements well. Currently still in the research and development stage, therefore, it is difficult to universally promote the use of temporary. Foreign from the late seventies, the working fluid