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EDM Filtration Fundamentals

机译:EDM过滤基础知识

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摘要

The surface finish quality of workpieces produced in EDM processes partly depends on the efficient filtration of the dielectric fluid. In recent years, EDM technology has enabled an ever higher surface finish quality of the parts produced. This is due to improvements in the process and machine, including improved filtration of the dielectric fluid. The dielectric fluid has several tasks to manage during the erosion process. It insulates the workpiece from the tool (electrode), provides the necessary cooling during the machining process, and flushes away the removed metal from the erosion gap. If the finish quality of the workpiece deteriorates, the reason can often be attributed to the fact that the purity level of the dielectric fluid has gone down due to insufficient filtration. A further complication is that with new power generators the gap size is reduced, which improves the finish quality, but produces smaller particles that are more challenging to remove from the dielectric.
机译:用EDM工艺生产的工件的表面光洁度部分取决于电介质流体的有效过滤。近年来,EDM技术使所生产零件的表面光洁度更高。这是由于工艺和机器方面的改进,包括改进了介电液的过滤。介电液在腐蚀过程中有多项任务需要管理。它将工件与工具(电极)绝缘,在加工过程中提供必要的冷却,并从腐蚀间隙冲洗掉去除的金属。如果工件的精加工质量下降,则通常可以归因于以下事实:由于过滤不足,介电液的纯度下降。更为复杂的是,使用新的发电机,间隙尺寸减小了,从而改善了表面质量,但产生了较小的颗粒,从电介质中去除则更具挑战性。

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  • 来源
    《EDM Today》 |2014年第3期|74-77|共4页
  • 作者

    Fabian Maier;

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