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首页> 外文期刊>Materials and Manufacturing Processes >Effect of Tool Rotation on MRR, TWR, and Surface Integrity of AISI-D3 Steel using the Rotary EDM Process
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Effect of Tool Rotation on MRR, TWR, and Surface Integrity of AISI-D3 Steel using the Rotary EDM Process

机译：旋转电火花加工工具旋转对AISI-D3钢MRR，TWR和表面完整性的影响

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摘要

Electric discharge machining (EDM) is an acclaimed non-conventional machining process that is used for machining of hard or geometrically complex and electrically conductive materials which are extremely difficult to machine by conventional methods. One of the foremost demerits of this process is its very low material removal rate (MRR). For this, researchers have proposed some modifications like; providing rotational motion to the tool or workpiece, mixing of conducting fine powders (such as SiC, Cr, Al, graphite etc.) in the dielectric, providing vibrations to either the tool or the workpiece etc.The present research examines how the MRR and tool wear rates (TWR) vary with the variation in the tool rotation speed and their effects on the surface integrity of the workpiece. The results obtained clearly indicate that the tool rotation significantly improves the average MRR up to 49%. Moreover, the average surface finish also gets improved by around 9-10% while using the rotational tool EDM. Due to the tool rotation, the recast layer thickness is less for the rotary EDM as compared with the stationary tool EDM process. Furthermore, the micro-cracking on the recast surface of the workpiece is also less for the rotary tool EDM as compared with the stationary tool EDM.
机译：放电加工（EDM）是一种备受赞誉的非常规加工工艺，用于加工硬质或几何形状复杂的导电材料，而这些材料很难用常规方法进行加工。该工艺的最主要缺点之一是其极低的材料去除率（MRR）。为此，研究人员提出了一些修改，例如：为工具或工件提供旋转运动，在电介质中混合导电细粉（例如SiC，Cr，Al，石墨等），为工具或工件等提供振动。本研究研究了MRR和刀具磨损率（TWR）随刀具转速的变化及其对工件表面完整性的影响而变化。获得的结果清楚地表明，刀具旋转显着提高了平均MRR达49％。此外，使用旋转工具EDM时，平均表面光洁度也提高了约9-10％。由于工具旋转，与固定工具EDM工艺相比，旋转EDM的重铸层厚度要小。此外，与固定工具EDM相比，旋转工具EDM在工件的重铸表面上的微裂纹也更少。

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