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Sinker EDM Machining

MILCO EDM - Conventional EDM machining, unsurpassed quality...

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Sinker EDM, Conventional EDM, Ram EDM, Plunge EDM and Die-Sinker are all one in the same. They can all be used to add another dimension in CNC Machining. This process uses custom machined electrodes that produce sparks alongside the surface of the electrode to machine, sink or plunge the cavity. The Sinker EDM process is very ideal for a wide variety of applications, such as:

  • Blind cavities
  • Intricate details
  • Sharp corners
  • Fine finishes (surface finishes to 10 micro-inch)
  • Thin walls
  • Machining threads into hardened parts
  • Blind keyways
  • Internal splines, squares, or hexes
  • Tolerances can be held to .0001"

Any conductive material can be machined using Conventional or Sinker EDM such as, but not limited to Aluminum, Brass, Carbide, Copper, Hastalloy, Inconel, Kovar, Stainless Steel, Tool Steels, and Titanium.

Electrodes for Sinker EDM machining are generally made from Copper, Graphite, or Tungsten depending upon work piece material and electrode wear requirements.

MILCO Wire EDM Uses 3 top of the line CNC Sinker EDM Machines that have a wide array of capabilities:

  • 24 hour "lights out" manufacturing capabilities, for large order & fast turnaround machining
  • Automation capabilities with robotic tool changers from System3R
  • Standard Work envelope Capacity 18"x13"x24"
  • Repeatability of +/-.00005 for Rigorus Accuracy Demands
  • Total Machining Accuracy down to .0002"
  • Production Finishes down to 8RA

Electrodes for all the Sinker EDM machining Processes are typically made from Graphite, Copper and/or Tungsten depending specifically on the work piece material utilized for the job and the amount required for electrode wear.

Here at MILCO, We have full machining capabilities to design and manufacture our own electrodes. Therefore reducing turnaround time and avoiding costly outside processes.

If your Job, Part, or Application needs any Sinker EDM Expertise, Look to MILCO Wire EDM for the fastest and most reliable Sinker EDM Service around!