Method for detecting and quantifying drilling anomalies
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United States of America Patent
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Apr 28, 2009
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app pub date -
Jul 27, 2007
filing date -
Jul 28, 2006
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Abstract
A method for detecting and optionally a method for quantifying drilling anomalies in a metal part. The drilling method includes determining a value set of at least one of the two following parameters, depending on the time: the penetration axial stress of a drill bit into the metal part and the torque generated during at least one portion part of the drilling.
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