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首页> 外文会议>International Conference on Emerging Trends in Mechanical and Industrial Engineering >A New Permanent Magnet Type Magnetorheological Finishing Tool for External Cylindrical Surfaces Having Different Outer Diameter
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A New Permanent Magnet Type Magnetorheological Finishing Tool for External Cylindrical Surfaces Having Different Outer Diameter

机译：用于具有不同外径的外圆柱表面的新型永磁型磁流学精加工工具

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An improved magnetorheological finishing process has been developed with three permanent magnets for nano finishing the external surface of cylindrical workpieces. The cylindrical permanent magnets used in the developed tool are placed at an angle of 90° from each other. The three cylindrical permanent magnets are positioned in such a way that all three maintain an equal working gap with the surface of cylindrical workpiece. Finite Element (FE) analysis of the entire setup has also been performed in the Maxwell Ansoft V13 software to observe the dispersal of magnetic field density in the working gap. In the current study, the preliminary experimentations have been carried out to evaluate the finishing capability of the present developed tool. Experiments have been conducted over the external cylindrical work-piece made of copper which can be used as an electron discharge machining (EDM) electrode. After the experimentations of 45 min over the entire cylindrical work-piece made of copper, the average surface roughness R_a gets reduced from 224 to 67 nm with negligible surface defects which confirm the finishing performance of the developed finishing tool.
机译：采用三个永磁体开发了一种改进的磁流学整理工艺，用于纳米整理圆柱形工件的外表面。在开发工具中使用的圆柱形永磁体彼此沿90°的角度放置。三个圆柱形永磁体以这样的方式定位，即所有三个保持与圆柱形工件的表面相等的工作间隙。整个设置的有限元（FE）分析也已经在Maxwell ANSoft V13软件中进行，以观察工作间隙中的磁场密度的分散。在目前的研究中，已经进行了初步实验，以评估目前发达工具的精加工能力。已经通过铜的外圆柱工件进行了实验，该工件可用作电子放电加工（EDM）电极。在由铜制成的整个圆柱形工件上45分钟的实验后，平均表面粗糙度R_A从224到67nm降低，表面缺陷可忽略不计的表面缺陷，该表面缺陷确认了开发的精加工工具的整理性能。

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