Study on Electric Discharge Machining : The Effect of Electrode Shape on Machining of Mild Steel

It was very difficult to open holes for hard materials. If electric discharge machining is used, we can easily finish these metals. This method removes metal by electric spark, and the electrode consumes at the same time. The melting of metals at an electric discharged point is one of the most important matters for studies of electric discharge machining. In this report, the electrode shape on machining of mild steel is described. The relationship between electrode shape and machining faculty is found out as follows. It is desirable that electrode end shape and diameter are changed in accordance with shape and depth of machining hole.