Wire Electrical Discharge Machining
Is a type of EDM that uses a thin wire as the electrode instead of a shaped block.
How it works
A continuous thin wire (often brass, ~0.1–0.3 mm thick) passes through the workpiece.
Electrical sparks between the wire and workpiece erode material along the programmed path.
The wire is constantly fed from a spool so it stays fresh and precise.
The machine operates submerged in dielectric water for cooling and flushing.
Why it’s used
Extremely precise profiles
tolerance can be within ±0.002 mm.
Thick materials
Can cut very thick materials (up to 300mm or more).
Intricate shapes
Ideal for intricate shapes, sharp internal corners, and narrow slots.
Mechanical stress
No mechanical stress on the part because there’s no cutting force.
Common uses in manufacturing
4 axle CNC machining shows up in nearly every sector:
Punch & die sets
for stamping.
Aerospace
parts with complex slots or contours.
Medical
surgical tools.
Electronics
components with fine, delicate geometries.
Why it matters
Wire EDM takes it a step further, enabling super-fine cutting and intricate profiles with minimal finishing needed.