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Because
the high temperature arc between the electrode, the workpiece
is continuously quenched by the pressure coolant, there is no
annealing of material around the hole. The hole created by the
arc takes the same shape as the electrode used.
Use any conductive material
Any tubing material that conducts an electrical current can be
used as an electrode. However, ELECTRO ARC molybdenum electrodes
are recommended because their high melting point, low erosion,
and high conductivity deliver maximum performance.
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