CONTROLLABLE CUT BY A PLASMA ARC TORCH
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United States of America Patent
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Issued Date -
Sep 1, 2011
app pub date -
Mar 1, 2010
filing date -
Mar 1, 2010
priority date (Note) -
Abandoned
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Abstract
Embodiments of methods of controlling the shape of a cut on a workpiece using a plasma arc torch are provided. The methods may control the resultant cut angle and the shape of a top of the cut. The top of the cut can have either a sharp edge, or have a rounded lip. The radius of the rounded lip can be adjusted. The standoff distance defined between the nozzle of the plasma arc torch and the top surface of the workpiece contributes to defining the resultant cut angle and the shape of the top of the cut. In particular, increasing the standoff results in a greater radius and increases the cut angle and decreasing the standoff distance does the opposite. Additionally, the angle of inclination of the plasma arc torch can be used to compensate for a resultant cut angle so as to produce a desired cut angle.
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