Re: [Emc-users] EDM Small Hole Drilling

[Gregg Eshelman]

Small  hole  EDM  (electrical  discharge  machining)  drilling,  also  known  
as  fast  
hole EDM drilling, hole popper, and start hole EDM drilling, was once relegated 
to a “last resort” method of drilling holes. Now, small hole EDM drilling is 
used 
for production work. Drilling speeds have been achieved of up to two inches per 
minute.  Holes  can  be  drilled  in  any  electrical  conductive  material,  
whether  hard  
or soft, including carbide. See Figure 14:1 for various small hole EDM machines.
http://www.reliableedm.com/Complete%20EDM%20Handbook/Complete%20EDM%20Handbook_14.pdf
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