Spark erosion tool and electrode for a spark erosion tool
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United States of America Patent
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Feb 13, 2018
Issued Date -
N/A
app pub date -
May 28, 2013
filing date -
Jun 4, 2012
priority date (Note) -
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Abstract
A spark erosion tool includes an electrode arranged on a tool longitudinal axis and an electrode holder aligned along and arranged on the axis and connected to the electrode. The electrode holder includes a moving device for moving the electrode relative to the electrode holder and includes a press for applying pressure transversely to the axis in the area of an imaginary hose extending in the axis. The electrode holder has a cross section corresponding essentially to the electrode. An electrode for a spark erosion tool with a cylinder surface or a spherical surface includes a groove connected to a bore. A deflecting bore can be produced in a drill string part using the spark erosion tool. The deflecting bore is curved and connects two straight flushing bores.
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