微電化工加工( Electrochemical Micro-Machining，簡稱EMM )，是屬於非傳統加工的一種，其最大的優點在於它具有加工速度快、可加工高硬度之金屬，及加工表面無應力集中和變質層的問題。
本實驗以外徑200 之黃銅電極管做為陰極刀具，嘗試將冷磨鋼板(SKD61)做1mm之深孔加工。並利用高壓幫浦將電解液由電極管內部送出，此縱向流動之電解液，改善一般電化學加工中，橫向電解液流動所造成的排屑不良等問題。
本文以田口法作為分析工具，希望藉此了解各個因子(脈衝頻率
、加工能率、操作電壓、刀具進給速度、電解液濃度)之水準對實際加工孔徑的影響趨勢，並在實驗範圍內獲得A4B1C1D4E1之最佳參數組合。另以ANOVA計算出各因子對於加工孔徑影響的相對重要性，其結果發現操作電壓(F=6.007)對加工孔徑的影響最為重要，次者為加工能率(F=3.522)。並由分析獲得各個參數水準的貢獻率，藉以能在微電化學加工的實際運用中，提供一參考的數據資料。

Electrochemical Micro-Machining ( abbreviated as EMM ) is one of the non-traditional machining. The advantages of EMM include high speed processing, the adequated machining on any metal with high hardness, and no stress centralized and deterioration on the surface.
In this experiment, a brass electrode with diameter of 200 micrometer is employed as cathode (cutting tool) to drill through a steel plate (SKD61) of thickness 1mm. A high-pressure pump is used to enforce the electrolyte flowing of in the electrode tube. The accumulation of the resolved metallic particles in the chemically reactive area is improved by the radial flow of the electrolyte.
In this research, Taguchi Statistical Method is used to analyze the influence tendency of relevant parameters(such as : pulse frequency, duty, operate voltage, feed rate, electrolyte density) on the final diameter of the drilled hole, and get the optimal parameters (A4B1C1D4E1). The relative importance among factors can also be calculated by ANOVA analysis . It is found that applied voltage (F =6.007) is the most important factor, and the next one is the power duty (F =3.522). Results obtained in this experiment can be used as a referred data in the practical design of micro-electrochemical machining

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