EDM - Electrical Discharge Machining - is a machining procedure especially used
for the manufacture of dies, moulds and specific metal parts.
In the machining area each discharge produces a crater (removal of material)
in the workpiece and a burn-off (electrode consumption of the tool) on
the wire. The wire can be tilted producing conic workpieces or workpieces
with different profiles on the top and bottom sides.
There is never any
mechanical contact between the electrode and the workpiece! Usually,
the wire is made of multilayer copper or brass with a diameter ranging
from 0.02 to 0.3 mm.
Electrical Discharge Machining at FEOB is precision workmanship with high-quality
wire and die-sinking installations in air-conditioned rooms.
Where and when is EDM applied?
End products such as cutting dies, parts made from one single workpiece and parts
of a complex shape, e.g. injection moulds for the manufacture of plastic
cases for music cassettes, can be manufactured by EDM (also spark EDM).
For parts with complex contours and - e.g. in the case of milling - that are
difficult to clamp wire EDM is often a cost effective alternative.
For details about the EDM procedures at FEOB and for our EDM video, please go
to our pages Wire EDM and Die-sinking EDM . |
Die-sinking EDM - contactless removal of material from the workpiece by the electrode
for the manufacture of the desired mould.
3D component with boreholes, cavities etc. manufactured by die-sinking EDM.
Wire EDM - contactless cutting of a stainless steel block.
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