Capable of machining
exotic materials, including materials that are harder than typical
tool materials.
Can machine hardened
materials, thus eliminating the need for post-machining heat treatment.
Produces parts with
high accuracy and excellent surface finish.
Can produce complex,
intricate shapes.
Disadvantages:
The surface has
a heat affected zone. In heat treatable material, this layer
is very hard. If high amperage is used, minutes cracks can appear
leading to premature fatigue failure.
