Spark Erosion machining is a method used when machining
challenging pieces with intricate detail. The process involves
both the workpiece and the tool being connected to a direct
current; this provides a constant spark between the two. Then
area where the spark contacts the surface of the workpiece, is
heated to an extremely high temperature . The molten metal on
the surface of the workpiece evaporates creating a minute
crater. Continual discharge creates multiple craters, constantly
eroding the workpiece to the desired finish. The workpeice and
the electrode are divided by a gap which is occupied by a
synthetic insulating fluid. The liquid allows for eroded debris
to be washed away from the work area. The synthetic fluid is
used to control the temperature of the process, without it a
thermal shock would result, by eliminating heat to the
surrounding the process no distortion or change in temper takes
place. The process is suited for manufacturing intricate or
short run parts and it can be used for refurbishi