A new method of optimising material removal rate using EDM with copper–tungsten electrodes

By J. Marafona, C. Wykes. 2000

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Electrode wear and material removal rate during EDM of aluminum and mild steel using copper and brass electrodes (2008, background): “During EDM, the main output parameters are the material removal rate (MRR), wear ratio (WR), EW, and job surface finish Ra [ 7 , 8]. It is desirable to obtain the maximum MRR with minimal EW. Common electrode materials are graphite, brass, copper and copper-tungsten alloys [9, 10].”
Review of research work in sinking EDM and WEDM on metal matrix composite materials (2010, methodology): “Similarly, research work on tool wear process and methods of improvement in TWR has been reported [ 21 , 36, 37].”
An experimental study for determination of the effects of machining parameters on surface roughness in electrical discharge machining (EDM) (2006, methodology): “Marafona [ 7 ] worked on an optimization model by design of experiments methods (DOE) when a coppertungsten electrode is used in EDM processing.”
State of the art electrical discharge machining (EDM) (2003, methodology): “[62] J.”
Investigations into the effect of tool shapes with size factor consideration in sink electrical discharge machining (EDM) process (2009, methodology): “Marafona and Wykes [ 21 ] used the Taguchi method to improve the tool wear rate (TWR) by introducing high carbon content to the tool prior to the normal sparking process.”