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Small Hole Drilling EDM
| Author : Joe Hunter Date : 2012/7/18 6:59:13 |
Small hole EDM drill ("Hole Popper") in which the electrode is a brass or copper tube ranging from .004 to .250 inches in diameter that is used to blast holes through the workpiece. This process is similar to Sinker EDM except that sinkers have very sensitive power supplies to protect and conserve the electrode and the popper has a very aggressive power supply to blast through the workpiece very quickly. This type of EDM compliments the wire EDM by providing the ability to drill pilot holes through heat treated materials and carbide so that you can thread the wire through this pilot hole for a place to start your wire cut. |
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