Small hole electric discharge machine drill

B - Operations – Transporting – 23 – H

Patent

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Details

B23H 9/14 (2006.01) B23H 1/00 (2006.01) B23H 7/26 (2006.01)

Patent

CA 2689074

Disclosed is a method of depth-specific processing with a small hole electric discharge machine drill. Firstly, a specified processing depth A and tolerance .alpha. are registered with a program. Secondary, an origin of initiation of drilling is set on a surface of a workpiece by contacting a tip of an electrode D with the surface of the workpiece at a check point. Thirdly, the electrode is moved to a processing position to process until the specified processing depth. Fourthly, the electrode is moved to a position above the check point. Fifthly, the electrode is moved downward until the electrode contacts the surface of the workpiece, a Z-axis coordinate upon contact is defined as C. And finaly, a condition judgment is made concerning C which is found in the fifth step, as to whether or not ¦C¦ <= .alpha. is satisfied. If the condition is satisfied, then processing is completed.

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