The magic of EDM machines

The other day we were asked to remove a section out of a valve. It’s not a huge valve but milling it would’ve been difficult all the way to the center so we put it on the EDM to blast out the side to make the inside visible. through to the stuff on the inside. Here are the images.

another view
another view
EDMing of valve looking from the top
And a view from the top. gotta love the clean edges with the rough gritty surface.
EDMing of valve looking from the side
Here's a look at it from the side

This was all burned at 150 amps which is max for this machine.

A look as it was being burned, not much to see

Nothing crazy interesting, but I thought it may be neat.

Playing around, drawing a valve.

I was a little bored today so I decided to draw a valve. While the dimensions are entirely drawn from my head and the valve itself wouldn’t be very efficient, I like the look of gas compressor valves. It took me a couple of hours to draw but they look OK.

I didn’t tag them or describe them. There is a seat, a guard and a valve plate. I omitted the dowel pin, bolt, center nub and lock nut. I just wanted to see what it looked like in solids. 🙂