What is an EDM MACHINE?????

[chuckw2]

What is an EDM machine and how does it work...


How do action makers use it?


Expensive??


Do you have a pic?

 

[Dans40X]

EDM - Electronic Discharge Machine
Hard to explain the operation,been up too long today-20hrs)
A vert mill with a bath tank of dielectric fluid to submerge a part requiring material removal.
An electrode is installed in the head to burn the material away while submerged in fluid.
No heat is transfered

Bolt raceways are accurately burned into the action instead of broaching.

15yrs ago while in the Tool & Die trade,I burned 1/4-28 threads into tool steel die punches for a competitor that forgot 1 operation-threading holes-without the EDM the die parts were JUNK.



Expensive-Approx the cost of a new Ferrari.

 

[JayHHI6818]

OTT chambers barrels using EDM.

http://www.ottllc.com/

http://www.ottllc.com/EDM2.html