Implant Mechanix – Design & Innovation

We have sinker EDM capability with our Hansved CNC sinker EDM.

This machine is equipped with a Rotobore enabling precision holemaking.

		Maximum capacity is 12″ x 8″ x 6″ tall..

We have wire EDM capability with our Chmer wire EDM.
This machine is equipped with a rotary B axis enabling highly complex wire EDM cutting.

		Maximum capacity is 14″ x 9″ x 8″ tall. The rotary B axis can accept work up to 5″ diameter and 8″ long.

This is one of a pair of miniature punches and dies that could only be produced with the EDM process.
Both parts are extremely hard toolsteel ; over 60 Rockwell C.

		The button is A-2 toolsteel hardened to 60-62 RC and still needs to be finish ground. The openings are 0.0209″ wide.
		This is the mating punch. Die clearance is 0.0013″ total and the punches are 0.156″ long. They were cut by wire EDM cutting an electrode, then sinker EDM cutting the punch profiles and orbiting the electrode to bring the punches to size.

Shown are 2 shots of a micro sized medical part in 17-4 PH stainless steel.  The part is micro drilled, wire EDM cut and the cut-off stub is hand finished.  The part is tiny: it is 0.050″ (1.25mm) long and 0.030″ (0.75mm) wide.  The wall thickness is 0.004″ (0.1mm) at the thick points and the part is accurate to within 0.0003″.  It was a challenge to cut this tiny part, mostly because of the difficulty in not losing or destroying it when it was cut off from its stem.

		The part still in the EDM worktank and attached by a tiny stem to the material blank.  The 0.015″ start hole for the next part is also visible.  The stem is 0.005″ wide

		The finished, hand dressed part.  Parts this small are hard to hang on to and stabilise for hand finishing.  This is microscope and tweezer work, and a minor mis-step with the tweezers means you’ll never find your part again!  On the right side of the shot you can see the ruby file and diamond file used to dress off the cutoff vestige from the wire EDM process.  The part is the tiny black rectangle just to the left of the penny. (Click the thumbnail to enlarge it)