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EDM tool for surface finish

(-----) 2004

I need to EDM a custom carbide tool in order to achieve a 3.2 - 6.4 (mm) Ra finish, can someone help me on how deep and how much separation do I need to put on this tool? This will be used to machine Cast Iron.

Thanks in advance

Carlos Rdz.
Eng - Torreon, Coahuila, Mexico
^

2004

Carlos,
Your question refers more to a machining operation and this forum deals more with finishing operations. Vendors of EDM machines, electrodes or peers with more experience in these matters can better help you, I guess. G. Marrufo-Mexico

Guillermo Marrufo
Monterrey, NL, Mexico
^

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