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We use the Jergens ball lock system. It works well for us. A fixture change takes approx. 2 min. It also works well for vices so you don't have to indicate them every time you put them back on.
We have a Sodick Cnc Hole Poper (small hole edm) It works wonders removing taps or broken screws. It will burn .007 - .118" dia. hole so it is purfect for small taps. If it a larger tap we just progam an aray of holes to burn the center of the taps out. Then we use a pick to remove the flutes from the threads. We have approx. a 99% success rate. The problems that we run into is that if people try to remove the tap with a chisel or punch before hand it make removing the flutes from the threads alot harder.
That seemed to work. I didn't have any copper tungsten so I just used Tellurium copper. It was very slow going. Is there any edm books that anyone can recomend on the edm process.
Thanks,
I am new to sink edm. What I want to do is burn around a contour in a piece of C10 carbide. My question is what works better a copper electrode or graphite? I have an old Sodick A3CR Mark VIII. I do not have conditions for Graphite to Carbide only Copper to Carbide. If any one could help it would be greatly appreciated.
Thanks,
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