EDM

Anyone do EDM dry (using only air as a coolant?) I have a detail that cannot have coolant inside and the EDM must breakthru. Thanks

Reply to
Franklin Newton
Loading thread data ...

AFAIK, there isn't a dry EDM.

Are you looking for a wire, or sinker?

Reply to
Dave Lyon

--I've seen tap busters work this way; it leaves a horrible finish.

Reply to
steamer

As Ed Haas said, tap busters (primitive EDMs) often use air as the dielectric, but they're spitting, rough-burning contraptions that both arc and spark. They can leave quite a mess.

If you're just looking for something nonconductive, oil is used for dielectric in almost all sinker EDMs, and in some wire EDMs. If you can't have any liquid, you might want to look at another process, such as laser cutting or something else.

-- Ed Huntress

Reply to
Ed Huntress

Thanks everyone.

Reply to
Franklin Newton

PolyTech Forum website is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.