ELECTROCHEMICAL MACHINING (ECM) INTRODUCTION:- Electro chemical machining (ECM) is a method of removing metal by an electrochemical process. It is normally used for mass production and is used for working extremely hard materials or materials that are difficult to machine using conventional methods. Its use is limited to electrically conductive materials; however, this includes all metals. ECM can cut small or odd-shaped angles, intricate contours or cavities in extremely hard steel and exotic metals such as titanium, carbide etc. ECM is often characterized as "reverse electroplating," and is similar in concept to electrical discharge machining in that a high current is passed between an electrode and the part, through an electrolyte material removal process having a negatively charged electrode (cathode), a conductive fluid (electrolyte), and a conductive work piece (anode); however, in ECM there is no tool wear. The ECM cutting tool is guided along the desired ...
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ReplyDeletewe are facing oil issue with powder metallurgy parts ,the oil trapped in porosity that becomes difficult to us to remove the oil.
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