Purpose

This research explores the finite element modeling of the crater and material removal rate (MRR) in micro-electrical discharge machining (micro-EDM) with and without vibration of the workpiece. The application of workpiece vibration in the micro-EDM process improved flushing efficiency and enhanced material removal rate (MRR).

Design/methodology/approach

In this work, the two-dimensional axisymmetric finite element method (FEM) has been developed to predict the shape of the crater with and without vibration. The temperature distribution on the workpiece surface with and without vibration has been obtained in the form of the contour plot.

Findings

The MRR obtained from the numerical model revealed that there was an enhancement in MRR in micro-EDM with vibration as compared to without vibration. The effect of process parameters on MRR in micro-EDM with and without is also presented in this work.

Originality/value

In this work, the two-dimensional axisymmetric FEM model has been developed to predict the shape of the crater with and without vibration.

中文翻译：

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带有和不带有超声波振动的微型EDM工艺中材料去除率的有限元建模

目的

这项研究探索了在有或没有工件振动的情况下，微电火花加工（micro-EDM）中弹坑和材料去除率（MRR）的有限元建模。工件振动在微型EDM工艺中的应用提高了冲洗效率并提高了材料去除率（MRR）。

设计/方法/方法

在这项工作中，已经开发了二维轴对称有限元方法（FEM）来预测有无振动的弹坑的形状。以等高线图的形式获得了有振动和无振动时工件表面的温度分布。

发现

从数值模型获得的MRR显示，与不振动相比，带有振动的微型EDM的MRR有所提高。这项工作还介绍了在有和没有微电火花加工过程中，工艺参数对MRR的影响。

创意/价值

在这项工作中，已经开发了二维轴对称有限元模型来预测有无振动的弹坑的形状。