Would this part be a candidate for EDM?

[A.Delaney]

Would it be practical to EDM this spacer with an order of 25-50 pieces? Material is .500" 316SS. The shoulder isn't needed so they could be wire cut from plate. I'm not real familiar with EDM so I wasn't sure how they are in a small production setting.

 

[implmex]

Hi A.Delaney:
If you don't need the flange it's an easy part for the wire EDM.
The OD teeth will need a jig to hold the parts for finish cutting two of the teeth if you need them accurate, but it's not a difficult job.
You could stack plates and cut several at a time.

Remember though, you will have 0.005" radii on all the internal corners, both on the ID and on the OD.
If you can't live with that you can undercut the corners with a shallow 0.010" slot into each corner.
If you can't live with that either, you can't make them on the wire.

Cheers

Marcus
Implant Mechanix • Design & Innovation > HOME
Vancouver Wire EDM -- Wire EDM Machining

 

[A.Delaney]

Marcus thank you for the reply. The radius would not be a problem for these parts. All the pieces get squeezed together at the split with a bolt so the diameters are not real critical.

 

[LockNut]

You could wire the teeth into a copper electrode and use a sinker to burn the part if the flange is required.

 

[wdevine]

Yup that's totally an EDM part, and the slot in between the ID and OD makes it even easier.

 

[engineeric]

It's definitely a candidate for EDM. Depending on the accuracy you could wire the ID tooth form and and conventional the OD spline.

 

[CarbideBob]

I wonder the edm price for this at 25 to 50.?

 

[wdevine]

Think I'd probably quote those around $30/pc not including material.