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首页> 外文期刊>Journal of Materials Engineering and Performance >Magnetic-Assistance Finishing Processes in Freeform Surfaces
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Magnetic-Assistance Finishing Processes in Freeform Surfaces

机译：自由曲面中的磁辅助精加工工艺

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摘要

A new finishing process that uses magnetic force with high efficiency to assist discharging dregs from the electrode gap during electrochemical finishing on freeform surfaces is investigated in the current study. The factors affecting electrochemical finishing and the effects of magnetic assistance are primarily discussed. The main experimental parameters are magnetic strength, distance between the two magnets, diameter of the electrode, current density, the on/off period of pulsed current, and rotational speed of the wire electrode. Providing a large magnetic field intensity or using a smaller distance between the two magnets produces a larger magnetic force and discharge efficiency, and results in a better finish. A higher current density with magnetic assistance reduces the finishing time and avoids difficulties in dreg removal. A high rotational speed of the wire electrode produces a better finish. Pulsed direct current can slightly promote the effect of electrochemical finishing, but the current density needs to be higher. Magnetic assistance during the electrochemical finishing process makes a greater contribution in a shorter time making the surface of the workpiece smooth and bright.
机译：在当前的研究中，研究了一种新的精加工工艺，该工艺利用高效的磁力来协助在自由表面上进行电化学精加工时从电极间隙中排出渣reg。初步讨论了影响电化学修整的因素和磁性辅助作用。主要的实验参数是磁强度，两个磁体之间的距离，电极的直径，电流密度，脉冲电流的开/关时间以及线电极的转速。提供较大的磁场强度或在两个磁体之间使用较小的距离会产生较大的磁力和放电效率，并产生更好的光洁度。借助磁性辅助装置，较高的电流密度可减少精加工时间，并避免了去除残渣的困难。线电极的高旋转速度产生更好的光洁度。脉冲直流电可以稍微促进电化学抛光的效果，但是电流密度需要更高。电化学精加工过程中的磁性辅助在较短的时间内做出了更大的贡献，使工件的表面变得光亮。

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